DB2/2 AND DB2/6000 QUESTIONS AND ANSWERS3-1994-00
TORONTO, CANADA
Version 3.0
ii DB2/2 And DB2/6000 Questions and Answers
CONTENTS
________
PREFACE . . . . . . . . . . . . . . . . . . . . . . . V
DB2/2 AND DDCS/2 . . . . . . . . . . . . . . . . . . 1
Communications & DDCS . . . . . . . . . . . . . . . . 1
Utilities . . . . . . . . . . . . . . . . . . . . . 16
Install and Migration . . . . . . . . . . . . . . . 19
Application Development . . . . . . . . . . . . . . 27
Coexistence . . . . . . . . . . . . . . . . . . . . 36
Miscellaneous Topics . . . . . . . . . . . . . . . 38
DB2/6000 AND DDCS/6000 . . . . . . . . . . . . . . 47
Communications & DDCS . . . . . . . . . . . . . . . 47
Install and Migration . . . . . . . . . . . . . . . 50
Application Development . . . . . . . . . . . . . . 51
Miscellaneous Topics . . . . . . . . . . . . . . . 52
FEEDBACK QUESTIONNAIRE . . . . . . . . . . . . . . 55
Contents iii
iv DB2/2 And DB2/6000 Questions and Answers
PREFACE
_______
This document contains information that should be of help
to users of Database 2 for OS/2 (DB2/2) and Database 2
for AIX (DB2/6000). In some cases, the solution or
answer may be applicable to the previous Database Manager
(DBM) products on OS/2, such as Extended Edition Version
1.3 (EE 1.3) and Extended Services Version 1.0 (ES 1.0).
It also provides information for our Distributed Database
Connection Services customers (DDCS/2 1.0, DDCS/2 2.0,
and DDCS/6000 1.1).
The information here is presented in the form of
questions and answers, or problems and solutions, that
have come up for other customers. Naturally, due to the
ever-increasing complexity of products and the
environments in which they are used, it is not always
possible for a solution to be applicable in all cases of
a problem. If a solution here does not meet your needs,
continue to use whatever service process you regularly
use, or call:
o "1-800-992-4777" for DB2/2 and DDCS/2
o "1-800-225-5249" for DB2/6000 and DDCS/6000
For your convenience we have included BookManager READ/2,
which allows you to view this book online. One of
BookManager's features is the searching facility, which
enables you to search the entire document or any part of
it for key words. Another useful feature is the printing
facility, which enables you to print off any portion of
the document.
It is our intention to have this package updated
quarterly.
We would like to thank you for using our database
products, and we hope that the information here will be
of assistance to you.
Tom Curtis
Manager, Workstation Database Service
Preface v
vi DB2/2 And DB2/6000 Questions and Answers
DB2/2 AND DDCS/2
________________
COMMUNICATIONS & DDCS
_____________________
1. PROBLEM / QUESTION
When I try to connect to DB2/MVS with DDCS/2, I'm
getting an SQL30080 error with sense data 0806002B.
SOLUTION / ANSWER
The parameter ACTIVATE_AT_START_UP is set to YES in
NDF file, when it should be set to NO. Change this
parameter and try again.
2. PROBLEM / QUESTION
The DB2/2 1.0 client is accessing a DB2/MVS host
database via an ES 1.0 DDCS/2 gateway, and cannot
bind the DB2/2 bind files to the DB2/MVS database.
SOLUTION / ANSWER
Copy all DB2/2 bind files in SQLUBIND.LST to the ES
1.0 server, and then run SQLJBIND using SQLUBIND.LST
to bind all the DB2/2 .BND files to the host
database.
3. PROBLEM / QUESTION
I'm getting SQL30080N 0014 on the client when I try
to connect to the server.
SOLUTION / ANSWER
One possible cause is that the server's installation
was incomplete. If you have had a successful
connection before, and have not installed anything
new, then this is not the problem.
Check to see if there is a file called IBMLANLK.LST
in the OS2\INSTALL\IBMLANLK\ directory. If there is,
you need to reboot the server in order for the
installation of DB2/2 1.0 to be complete. This file
contains instructions that need to be executed in
order to handle any files that were locked during
installation.
DB2/2 and DDCS/2 1
If this does not work, you will have to reinstall
DB2/2 1.0. Delete the OS2\INSTALL\IBMLANLK directory
and remove DB2/2; then reinstall it.
Another possible cause is that NETBIOS support has
not been initialized on the database server and/or
the client. ( If sufficient resources were available
and NETBIOS support has been initialized, you will
hear three beeps on the server and one beep on the
client during the STARTDBM.) To increase the
resources, you will need to increase the values of
NAMES, COMMANDS, and SESSIONS in LAPS.
4. PROBLEM / QUESTION
I'm getting SQL1042 error after SQLLOGN2 from a DOS
window on OS/2 2.x.
SOLUTION / ANSWER
This may be due to uninitialized NETBIOS resources.
Check the following:
a. Ensure that NETBIOS support has been installed
and configured. This may either be via LAPS in
ES 1.0 Communications Manager, or LAPS as part of
NTS/2.
b. Ensure that there are enough NETBIOS resources.
c. Run SETUPVDD as defined in the DB2/2 readme file.
5. PROBLEM / QUESTION
I'm getting SQL0204 error when I try to access a
table in AS/400.
SOLUTION / ANSWER
Check how the table is qualified.
For a table in AS/400, the qualifier is the
COLLECTION ID or the LIBRARY name. For example, table
TABLE1 in COLLECTION (or LIBRARY) COLLE CT,
the fullname is COLLECT.TABLE1. (It is not the DDCS/2
default qualifier of logon id.)
6. PROBLEM / QUESTION
Does DB2/2 provide an Open Database Connection (ODBC)
driver?
SOLUTION / ANSWER
2 DB2/2 And DB2/6000 Questions and Answers
No, but you have a couple of options:
a. It will be provided in a future release of DB2/2.
b. It is available now via a package called Q&E ODBC
Pack. Contact Q&E Software Inc in Raleigh, North
Carolina ((919) 859-2220). DBC Pac
7. PROBLEM / QUESTION
My Windows requester gets SQL1032 error when I try to
connect, although STARTDRQ and SQLLOGN2 work fine.
SOLUTION / ANSWER
You need to configure Windows to use virtual NETBIOS.
Make sure that in \WINDOWS\SYSTEM.INI, under section
386ENH, the parameter NETWORK is set to *VNETBIOS.
8. PROBLEM / QUESTION
What protocols are required for DB2/2 and DDCS/2 to
get to any database on the host?
SOLUTION / ANSWER
From the DB2/2 client to the DDCS/2 server, either
NETBIOS or APPC/APPN. To access a host database you
need to use APPC.
9. PROBLEM / QUESTION
Does DB2/2 support EE 1.3 clients?
SOLUTION / ANSWER
Yes, but only through the APPC communications
protocol.
10. PROBLEM / QUESTION
What is the memory requirement for DDCS/2 clients?
SOLUTION / ANSWER
Refer to the :hpInformation and Planning Guide, p.
40. For DDCS/2 be sure to add 200K to the 230K that
is required for a RDS client, to get t he 430K
requ irement of a client going through a DDCS/2
gateway to the host.
11. PROBLEM / QUESTION
DB2/2 and DDCS/2 3
I'm getting a SQL30080 0003-0000004 error with sense
data FFFE0113 when 1 trying to connect to
DB2/MVS using dependent LU.
SOLUTION / ANSWER
This is caused by the wrong configuration on both
OS/2 and VTAM.
In the DDCS/2 gateway, set PARALLEL_SUPPORT in
DEFINE_PARTNER_LU to NO. In VTAM, the MODENT
parameter must have the following: COMPROT=X'50A5',
PSERVIC=X'060200000000000000122C00'.
Another possible cause is that the target only
supports dependent LU.
Put XID=YES in the VTAM definition for PU of the
workstation (in addition to LOCADDR=0).
12. PROBLEM / QUESTION
I'm having problems accessing an AS/400 database.
SOLUTION / ANSWER
This is probably caused by not declaring the RDB
directory correctly on the AS/400.
Use the ADDRDBDIRE command to define a name for the
local AS/400 database. Also, you must use Query
Manager/400 to create a NULLID collection.
13. PROBLEM / QUESTION
I'm getting SQL30080 with sense data FFFF0003.
SOLUTION / ANSWER
This indicates that a session activation failed
because APPC could not find a link to connect it to
the partner node. Define the correct Partner LU Name
in Link.
Define a link 'to primary host' in CM/2 or ES 1.0
Communications Manager.
14. PROBLEM / QUESTION
I'm getting SQL30080 0003-00000004 with sense data
08970015.
SOLUTION / ANSWER
4 DB2/2 And DB2/6000 Questions and Answers
This is caused by a System Definition Mismatch.
Change the PU definition at the host to state:
Dynamic LU = YES.
15. PROBLEM / QUESTION
Connecting to the SQL/DS machine returns SQL30080
0010-00000000 with sense data 08640001.
SOLUTION / ANSWER
The SQL/DS server machine was not brought up with the
correct parameter to allow DRDA protocol.
When bringing it up use: SQLSTART DB(dbname)
parm(protocol=AUTO) or SQLSTART DB(dbname)
parm(protocol=DRDA).
16. PROBLEM / QUESTION
I'm having problems getting DBM DROP DATABASE for a
host database working properly.
SOLUTION / ANSWER
If you want to execute a DROP DATABASE against any
host database, you must write an application (in C or
another language) to prepare the statement, and then
execute it.
17. PROBLEM / QUESTION
I'm getting SQL30080 with sense data 081C0103.
SOLUTION / ANSWER
This is usually caused by the incorrect destination
address in the LINK configuration of the client.
Check this and if necessary, change it to the correct
one.
18. PROBLEM / QUESTION
I'm receiving unreadable EBCDIC data when selecting
from an OS/400 database via DDCS/2.
SOLUTION / ANSWER
Usually this is caused by the CCSID being set to
65535.
Change the CCSID to 037.
DB2/2 and DDCS/2 5
You could also change the character set of the file
in question.
19. PROBLEM / QUESTION
I'm having problems connecting to DB2/MVS through
DDCS/2. First I received SQL30080 0003-00000004;
then I received SQL30080 0003-00000005 with sense
data 08210002.
SOLUTION / ANSWER
a. The target database was not the location name of
the DB2/MVS database.
b. MODTAB of the APPL definition does not contain
IBMRDB and SNASVCMG modes.
c. Try redefining the target database and define
IBMRDB and SNASVCMG in MODTAB.
20. PROBLEM / QUESTION
Only one user can connect to DB2/MVS.
SOLUTION / ANSWER
This is usually caused by missing Mod table
definitions on VTAM, so define the correct Mod tables
on VTAM and retry.
It also may be caused by MAXREMOTE=1 on the DSNTIPE
panel of DB2 DDF install or MAXSESSIONS=1. Increase
one or both of these as needed.
21. PROBLEM / QUESTION
Can I run WINDOWS/DOS client applications on the same
machine as the server without going through a
network?
SOLUTION / ANSWER
No. The request has to go through the network. DB2/2
does not support internal loopback.
If a network is defined, then the client and server
can be on the same physical machine.
If you do not have a network, you can attach a
Token-Ring wrap plug to your Token-Ring adapter card.
Then you will be able to use the Windows/DOS client
applications.
6 DB2/2 And DB2/6000 Questions and Answers
22. PROBLEM / QUESTION
I'm getting SQL0969 with -7008 as sqlerror when
trying to access an AS/400 Database using DDCS/2.
SOLUTION / ANSWER
Journalling is probably turned off. Journalling must
be ON when using DDCS/2 with an isolation level other
than Uncommitted Read (UR).
To turn journalling on perform the following steps:
a. Create a journal receiver: CRTJRNRCV
b. Create a journal: CRTJRN
c. Start journalling the physical file: STRJRNPF
Use an isolation level of uncommitted read (UR). To
do this perform either of the two following actions:
a. Rebind the application using the /I=UR parameter.
b. Use CLI with the command: DBM CHANGE SQLISL TO
UR.
23. PROBLEM / QUESTION
My DB2/2 client receives logon failed when performing
a logon to a DB2/2 Server, using a USERID and
PASSWORD defined in UPM on the server and I'm using
the APPC communications protocol.
SOLUTION / ANSWER
The Conversation Security is not being set correctly
in CM/2.
Define 'Conversation Security' to 'Utilize User
Profile Management' (select the push button on the
CM/2 SNA Features Panel), or enter the userids and
passwords that you want CM/2 to accept (using the
same panel).
24. PROBLEM / QUESTION
My logon fails with SQL30080 error (APPC code is
080F6051) when I try to connect to a DB2/MVS database
using dependent LU.
SOLUTION / ANSWER
DB2/2 and DDCS/2 7
Try bringing down DB2/MVS and DDF, then bring them
back up.
25. PROBLEM / QUESTION
Can you use SELECT statements to select different
members of an AS/400 physical file (table)?
SOLUTION / ANSWER
No, not even SQL/400 can do that. Only the first
member can be selected. (There may be some
techniques on the AS/400 where you can "fool" the
system by using an alias name for each member, but we
are not aware of any)
26. PROBLEM / QUESTION
The Windows client cannot talk to the DB2/2 server,
although the DOS-only client application works fine.
SOLUTION / ANSWER
This is caused by not setting up Windows to point to
PC LAN support.
Copy MSNET.DRV from Windows diskette 1 to
WINDOWS\SYSTEM. Run Windows Setup; choose OPTIONS,
then Network. You can then choose PC LAN Support
program to be installed.
27. PROBLEM / QUESTION
I'm receiving communication error SQL30080
0003-080F6051 (SECURITY_NOT_VALID) when I try to log
on to the DB2/MVS host via DDCS/2.
SOLUTION / ANSWER
The parameter specification in the VTAM APPL
statement that is used when defining the DB2
subsystem to VTAM is incorrect.
Set SECACPT=ALREADYV in the VTAM APPL statement and
try again. (This is assuming that the userid and
password are actually valid on the host. Validity
should be confirmed first.)
28. PROBLEM / QUESTION
I'm having a problem connecting the desired number of
APPC clients, or I find that I cannot connect as many
as I used to.
8 DB2/2 And DB2/6000 Questions and Answers
SOLUTION / ANSWER
This is caused by resource contention between the
database demands and the LAN Server demands.
Increase 'Max Number of Link Stations' on the
database server, or stop using the same machine as a
database and a LAN Server.
The clients that cannot connect will usually HANG.
29. PROBLEM / QUESTION
The DDCS/2 connection hangs in VTAM with PCINIT
status.
SOLUTION / ANSWER
This may be caused by the incorrect format in LOGMODE
in VTAM. The continuation line must start on column
16.
30. PROBLEM / QUESTION
I'm receiving an SQL30080 error with reason code 0038
or 0014, when I use NETBIOS to connect from a client
to a server.
SOLUTION / ANSWER
There are insufficient NETBIOS resources.
Increase the NETBIOS resources in PROTOCOL.INI:
specifically, NAMES, SESSIONS, and COMMANDS. You can
edit the PROTOCOL.INI file directly and change the
values of NAMES, SESSIONS, and NCDS, or you can
select LAN Adapter and Protocol Support in ES 1.0
Communication Manager, or execute LAPS.EXE in
\IBMCOM, if you have NTS/2 installed.
31. PROBLEM / QUESTION
I receive SQL30080 Reason Code 0A while trying to
issue a connect from the DB2/2 clients to the DB2/2
server.
SOLUTION / ANSWER
The number of the remote connections exceeded the
configured limit.
Increase the value of the NUMRC parameter in the
Database Manager Configuration.
DB2/2 and DDCS/2 9
32. PROBLEM / QUESTION
It looks like DB2/2 is not verifying the CM/2
configuration file when it gets done adding the two
DB2/2 TPs.
SOLUTION / ANSWER
DB2/2 does not verify the CM configuration file after
installation. If you look at the DB2/2 README.SQL
file, under the heading "DB2/2 Server and CM", it
states that you must run the verify.
33. PROBLEM / QUESTION
Userids for DOS and Windows Clients cannot have the
pound sign (#) as a character, but those in DB2MVS,
can. Is there a workaround for this?
SOLUTION / ANSWER
Yes. In DB2/MVS you can use USERID TRANSLATION
FUNCTION to "translate" userids without the pound
sign to other userids with it. This workaround has
to be done on the mainframe.
34. PROBLEM / QUESTION
I received 0003-00000004 or 0003-00000005 on the
second EE1.3 client connecting to the DB2/2 server.
SOLUTION / ANSWER
Both EE1.3 clients are using the same Local LU (for
example LU1).
Ensure that each client has a unique Local LU.
35. PROBLEM / QUESTION
Does SQLSIZE in CFG of DOS/WINDOWS CLIENT have to be
the same as SVRIOBLK on the server?
SOLUTION / ANSWER
No, these never have to be the same in both ES and
DB2/2. (Note: In ES, the RQRIOBLK of the OS/2
Requester needs to be the same as SVRIOBLK on the
server. This does not apply to DB2/2 any more, and
has never applied to DOS/Windows clients).
36. PROBLEM / QUESTION
10 DB2/2 And DB2/6000 Questions and Answers
After upgrading the database server from EE1.3 to
CM/2. EE1.3 clients clients cannot connect with
communications error. The clients are using SQLL00
as the communications protocol.
SOLUTION / ANSWER
The SQLLOO protocol cannot be used with CM/2.
37. PROBLEM / QUESTION
I'm receiving SQL30080-14 error.
SOLUTION / ANSWER
This may be caused by incorrectly cataloging the
workstation on the server. Review your catalog
parameters.
38. PROBLEM / QUESTION
I'm receiving an APPC error of 0003-00000005 with
sense data 08120006 when I try to connect to host via
DDCS/2.
SOLUTION / ANSWER
This error is caused by insufficient resources on the
host side. Seek assistance from your host system
programmers and VTAM support personnel.
39. PROBLEM / QUESTION
I'm receiving SQL30061N when I try to connect to
AS/400 via DDCS/2.
SOLUTION / ANSWER
On AS/400, use command ADDRDBDIRE to add a local
database directory entry, and use the name for the
TARGET DATABASE in DCS directory.
40. PROBLEM / QUESTION
DBM EXPORT hangs or returns SQL1325N when I issue it
against the host database.
SOLUTION / ANSWER
EXPORT hangs because it tries to perform a DBM
CONNECT. If you use dependent LU and already have a
connection, this connect will hang. The only support
export format for host databases is IXF.
DB2/2 and DDCS/2 11
41. PROBLEM / QUESTION
I'm having trouble getting a Windows client up and
running. I'm receiving an SQL30080 error rc=14.
SOLUTION / ANSWER
Check the nname of the workstation and make sure that
it is unique.
42. PROBLEM / QUESTION
Receiving SQL30080N FFFF or SQL30081N FFFF on a
NETBIOS connection.
SOLUTION / ANSWER
There are multiple causes for this error:
1. NETBIOS is not installed (LAPS for OS/2 and LSP
for DOS)
2. NETBIOS was not initialized during the STARTDBM.
You should hear 3 beeps on the server and 1 beep on
the client during a STARTDBM.
3. The NNAME defined in the Database Manager
Configuration is not defined.
4. The NNAME defined in the Database Manager
Configuration is not unique on the network.
43. PROBLEM / QUESTION
Poor performance occurring with the DOS Client (ES
1.0 , DB2/2, CAE/DOS or SDK/DOS) when using Lan
Support Program Version 1.35 and the device driver
DXMT0MOD.SYS.
SOLUTION / ANSWER
Add the parameter PBA=0 to the device statement in
the CONFIG.SYS on the DOS Client. It should look
something like this: DEVICE=X:\LSP\DXMT0MOD.SYS
PBA=0 <parm2> <parm3> ...
44. PROBLEM / QUESTION
Are back-level clients and servers supported?
SOLUTION / ANSWER
Back level clients are supported; however, back-level
servers are not. We always support clients for the
12 DB2/2 And DB2/6000 Questions and Answers
two previous releases. Unpredictable results can
occur when the client is at a higher level than the
server.
45. PROBLEM / QUESTION
Receiving SQL30080N RC=0014 or SQL30081N RC=0014.
SOLUTION / ANSWER
This could be caused by one of the following:
1. Insufficient resources allocated to NETBIOS
support. You can increase these by increasing the
values of SESSIONS, NCBS (COMMANDS) and NAMES in your
X:\IBMCOM\PROTOCOL.INI file. You must reboot your
machine after changing these values.
2. The NNAME specified in the node directory on the
client is not found on the network.
46. PROBLEM / QUESTION
Receiving SQL30080N RC=FFFF or SQL30081N RC=FFFF.
SOLUTION / ANSWER
This is caused by one of three things:
1. NNAME in the DATABASE MANAGER CONFIGURATION is not
unique on the network.
2. There were insufficient NETBIOS resources during
the STARTDBM to load NETBIOS support. The STARTDBM
will still return a return code of zero. You should
hear 3 beeps on the server and 1 beep on the client
when the NETBIOS resources are loaded. If they were
not loaded, you will have to increase the NETBIOS
resource setting s in the X:\IBMCOM\PROTOCOL.INI,
which are defined by SESSIONS, NCBS (COMMANDS) and
NAMES. You will need to reboot the machine after
changing these values.
3. The proper software for NETBIOS support was not
installed on the machine. For OS/2 machines, you
need to install LAPS (Lan Adapter and Protocol
Support) provided with NTS/2. For native DOS and
Windows machines, you need LSP (Lan Support Program).
47. PROBLEM / QUESTION
What levels of network software is required to
connect to SQL/DS?
DB2/2 and DDCS/2 13
SOLUTION / ANSWER
If you are using NCP then option C in the NCP
configuration, with VTAM 3.4, is required for DDCS to
support independent LUs.
48. PROBLEM / QUESTION
Receiving SQL1325N on IMPORT/EXPORT to AS/400.
SOLUTION / ANSWER
You cannot use Delimited ASCII, as this is
unsupported. Only PC/IXF is supported.
49. PROBLEM / QUESTION
Receiving SQL0961C when trying to access a database
table using Crystal Reports.
SOLUTION / ANSWER
Increase the values of the SQLSIZE parameter in the
DBDRQLIB.CFG file.
50. PROBLEM / QUESTION
Receiving an SQL1042 when attempting an SQLLOGN2.
SOLUTION / ANSWER
Look for LT00042 and PRO0025 errors in lantran.log.
This could mean you are using an unsupported ethernet
card.
51. PROBLEM / QUESTION
Receiving an SQL1042C when attempting to do an
SQLLOGN2 from a WIN/OS2 session of an OS/2 requester.
SOLUTION / ANSWER
This can be caused by not loading the LANPDD.OS2 and
LANVDD.OS2 device drivers. Make sure these drivers
are specified in your CONFIG.SYS.
52. PROBLEM / QUESTION
I am receiving a communication error with sense data
of FFFF0003 when I disconnect and reconnect to a
remote DB2/2 server?
SOLUTION / ANSWER
14 DB2/2 And DB2/6000 Questions and Answers
Do not select the FREE UNUSED LINK option in the DLC
profile for CM/2 configuration, as it will cause the
Logical Link to deactivate when a link is not being
used anymore.
53. PROBLEM / QUESTION
I am receiving a communication error with sense data
of 084B6031 while attempting to connect from the
DDCS/2 machine to DB2/MVS.
SOLUTION / ANSWER
You may be using the Local LU name for the partner LU
name in the Workstation Database Directory. After
recataloging the Node Directory, System Database
Directory, and DCS directory entries the problem
should be resolved.
54. PROBLEM / QUESTION
Does DB2/2 Version 1.x support the TCP/IP protocol?
SOLUTION / ANSWER
Not as a server; however, you can use the client
portion of DB2/2 to connect to a UNIX-based server
(DB2/6000, DB2/HP-UX, or DB2/Solaris) using TCP/IP.
55. PROBLEM / QUESTION
Communications error using NETBIOS. Receiving
SQL30080N RC=000A or SQL30081N RC=000A.
SOLUTION / ANSWER
One possible cause of this is mixed service levels of
either DB2/2 or LAPS. It is recommended that you
install the latest service levels of DB2/2 and LAPS,
ensure they both complete successfully, and try
again.
56. PROBLEM / QUESTION
Receiving error: (MicroSoft) (ODBC.DLL) Drivers
SQLALLOCENV failed "#0" (IBM) (CLI DRIVER)
SQLSTATE=58004. when trying to access a DB2/2 server
via CAE/DOS using the ODBC driver with a Windows
application.
SOLUTION / ANSWER
Ensure that the statement "CODEPAGE=437,850" is
included in your AUTOEXEC.BAT.
DB2/2 and DDCS/2 15
57. PROBLEM / QUESTION
How do I change the number of connections I can have
to DB2/MVS through DDCS/2 ?
SOLUTION / ANSWER
a. In CM/2 change the session limit within the Mode
definition.
b. The session limit is also defined in the APPLID
definition for DB2 subsystem in VTAM.
c. Change the MAXDBAT parameter in the DSNZPARM
dataset for DB2/MVS. The way this works is VTAM
and CM/2 negotiate how many connections can go
through DRDA from a communications standpoint.
This will be the minimum of #1 and #2 above.
Once this is defined, DB2/MVS will only allow the
number of connections as defined in #3 above.
UTILITIES
_________
1. PROBLEM / QUESTION
I'm getting SQL0309N from DB2 (Not null column = Null
values) is returned.
SOLUTION / ANSWER
You are trying to import a table with a Null column
to a DB2/2 table whose corresponding column is NOT
NULL or is NOT NULL WITH DEFAULT. The target column
has to be NULLable.
2. PROBLEM / QUESTION
I'm getting SQL1325 when trying to IMPORT with CREATE
option to a host database.
SOLUTION / ANSWER
DDCS/2 only supports IMPORT with the INSERT option.
The table must be created before the IMPORT can be
performed.
3. PROBLEM / QUESTION
I attempt to start QM and access DB server. I'm
getting QRW0541C RC:11008 and a 'Database bypass
screen' message.
SOLUTION / ANSWER
16 DB2/2 And DB2/6000 Questions and Answers
There are two statements missing from the config.sys
file when the client enabler is installed.
Add SET QRWDR=X and SET QRWINST=X:\sqllib, where X is
the drive where QM is installed.
4. PROBLEM / QUESTION
Can Query Manager be installed on a DOS/WINDOWS
client?
SOLUTION / ANSWER
No. Query Manager is a PM-based program, and will
only run in an OS/2 environment. It cannot run on a
DOS machine.
5. PROBLEM / QUESTION
I'm getting QRW2688W (maximum number of objects
exceeded) when I try to list 1,200 tables under the
same qualifier in Query Manager.
SOLUTION / ANSWER
DBM allows 32,767 tables. QM can only list 1,085
tables, due to a limitation of the listbox control in
Presentation Manager (PM). This is a permanent
restriction to Query Manager.
6. PROBLEM / QUESTION
Using personalized startup parameters for Query
Manager results in /Parameter (/DAT:, /DQUAL:, /PRO:,
etc) invalid characters.
SOLUTION / ANSWER
Enter the parameters in lowercase. Variables after
the colons may be entered in either upper or
lowercase (/dat:sample or dqual:USERID).
7. PROBLEM / QUESTION
Is it possible to import previously saved queries,
forms, and procedure definitions?
SOLUTION / ANSWER
Yes. The table to export is QRWSYS.QRWSYS_OBJECT. Be
sure to export it in IXF format. You may now import
the IXF file.
8. PROBLEM / QUESTION
DB2/2 and DDCS/2 17
How can I make QM print in landscape mode for wide
reports?
SOLUTION / ANSWER
This depends on the printer. For an IBM printer, you
can change the page header to be ascii 27 and ascii
108 (alt 027 and alt 108). This will cause the
printer to switch to landscape mode.
9. PROBLEM / QUESTION
I couldn't run select * from table where (field =
'&1') from anywhere but a prompted query in QM.
SOLUTION / ANSWER
The &1 tries to find a variable named '1', substitute
a variable name for the '1' and specify that this
variable has the value of '&1'.
10. PROBLEM / QUESTION
How can I update a field of my table with data type
"special data type" with Query Manager?
SOLUTION / ANSWER
This is not supported through QM. The options are to
create your own application to do this or use an
application with this capability already built in.
11. PROBLEM / QUESTION
Receiving an SQL2023N with an error return code of
6896 while running a BACKUP.
SOLUTION / ANSWER
This could be because you copied the SQLDBDIR file
from a Volume Database Directory
(x:\sqldbdir\sqldbdir) into the System Database
Directory (c:\sqllib\sqldbdir\sqldbdir) in order to
work around another problem. The "type" field in the
entry for each database in a System Database
Directory must be ASCII '0' (indirect) or ASCII '1'
(remote). The 'type' field in the entry for each
database in a Volume Database Directory must be ASCII
'2' (home). The DB2/2 code was detecting this value
of '2' in the System Database Directory entry for the
database being backed up and consequently ended with
the error message and error code.
18 DB2/2 And DB2/6000 Questions and Answers
To confirm if this is your problem, issue the OS/2
'type' command to display the contents of the
sqldbdir file in your System Database Directory. You
should see the database alias, followed by at least
one undisplayable character (depending on the length
of the alias), followed by the database name,
followed by at least one undisplayable character
(depending on the length of the name), followed by a
'0' (zero). If you see a '2' instead of a '0' use a
binary editor and change the ASCII '2' (hex '22') to
an ASCII zero (hex '20').
12. PROBLEM / QUESTION
Unable to print a table definition from Query
Manager.
SOLUTION / ANSWER
This could mean you have not defined and activated a
profile for your database with the printer nickname
specified.
13. PROBLEM / QUESTION
Receiving SQL0984 while running REORG
SOLUTION / ANSWER
This means you are running out of log space and this
can be fixed by either increasing your log file size,
or the number of log files you have. Change the
corresponding values in the database configuration
(eg. UPDATE DATABASE CONFIGURATION FOR sample)
INSTALL AND MIGRATION
_____________________
1. PROBLEM / QUESTION
a. I'm getting SQL1042C during STARTDBM after
installing select paks 7010 and 7012.
b. I'm getting "lock list was not processed" after
installation of DB2/2 or select paks.
c. My computer hangs when re-booted following
installation.
d. I'm getting DBI005E during installation of
DDCS/2.
DB2/2 and DDCS/2 19
e. I'm getting SYS2070 after installation of DB2/2,
the computer also has Lan Server 3.0 with the
HPFS386 file system installed.
f. I'm getting errors during STARTDBM after
installing stacker on my computer.
SOLUTION / ANSWER
The main solution to these installation problems
involves the processing of files that were locked by
OS/2. A program called IBMLANLK.EXE is used to
replace the files that were locked. This program is
executed during the startup processing of the
CONFIG.SYS file. Many problems can occur during the
execution of this program that result in errors with
DB2/2, User Profile Management, or First Failure
Support Tool (FFST/2).
Check for the existence of the file
OS2\INSTALL\IBMLANLK.LST on the drive where OS/2 was
installed. If this file exists, then the
IBMLANLK.EXE program did not complete successfully
during the startup of the computer and you should
attempt to execute the IBMLANLK program again. To do
so, add the following two statements to your
CONFIG.SYS and re-boot:
DEVICE=C:\OS2\INSTALL\IBMLANLK.SYS
C:\OS2\INSTALL\IBMLANLK.LST
RUN=C:\OS2\INSTALL\IBMALANLK.EXE
C:\OS2\INSTALL\IBMALNLK.LST
where C: is the drive on which OS2 was installed.
Note: Be sure that all IFS= statements come before
the above statements in the CONFIG.SYS file.
Stacker-type products have been known to cause some
problems during the processing of the IBMLANLK.LST
file. Move the location of the stacker device
drivers in the CONFIG.SYS and re-boot the computer.
2. PROBLEM / QUESTION
Do I need to reinstall CM/2 after applying the DB2/2
select pak 7010 if DB2/2 was installed after CM/2
1.0?
SOLUTION / ANSWER
DB2/2 overwrites the UPM with CSD level IP07000,
whereas CM/2 installed UPM at a level of IP07001.
There is no need to reinstall CM/2, as it will work
20 DB2/2 And DB2/6000 Questions and Answers
just fine with the version of UPM that DB2/2
installs.
3. PROBLEM / QUESTION
I'm getting DBI0021E during DBCID installation.
SOLUTION / ANSWER
The 'archive' bit may be 'on' for the subdirectory
specified for the /L parameter to the log file
subdirectory. This directory is where the CID
Installation code will copy the trace log and history
information resulting from the installation.
Use the 'ATTRIB' command to reset the 'archive' bit.
4. PROBLEM / QUESTION
When I install DB2/2 on a drive other than the boot
drive, I get DBI0021E and DBI0019E errors.
SOLUTION / ANSWER
DBI0021E occurs during the determination of the
amount of disk space that is available on the
installation drive. There could be an older version
of DB2/2 installated. Run CHKDSK on the installation
drive to verify the integrity of the disk drive.
5. PROBLEM / QUESTION
Why do I receive the error 'invalid path or filename
"MUGLIB"'?
SOLUTION / ANSWER
Determine if the path or filename is valid. There
should be a directory called MUGLIB on the
installation drive. Also use the ATTRIB command to
check the attributes as they should be set to
directory.
6. PROBLEM / QUESTION
What should I do if following migration of an ES 1.0
database I encounter the error SQL5046 "SQLENSEG is
too small"?
SOLUTION / ANSWER
If you change database and/or database manager
paraeters (ie. DBHEAP), the SQLENSEG parameter should
also be increased. This will not only help with the
DB2/2 and DDCS/2 21
SQL5046 condition, but will resolve any configuration
incompatiblity problems when migrating databases.
7. PROBLEM / QUESTION
When migrating DB from ES1.0 to DB2/2, I receive
SQL02519 and SQL05045 error (configuration is not
compatible).
SOLUTION / ANSWER
Run MIGRATE1.EXE from the command prompt after
increasing the DB heapsize.
8. PROBLEM / QUESTION
I'm getting DBI0050E when installing DDCS/2, although
I have the right the right DB2/2 and DDCS/2 versions
and installed DB2/2 first.
SOLUTION / ANSWER
An incorrect IBMLVL.INI file is in the root directory
of the boot drive.
Replace the IBMLVL.INI with an older IBMLVL.INI. (ie.
IBMLVL.BK)
9. PROBLEM / QUESTION
What are the memory requirements for DB2/2?
SOLUTION / ANSWER
DB2/2 server: minimum 2.5 meg;
DB2/2 client: minimum 1.7 Meg.
(See p. 40 of DB2/2 Information & Planning Guide for
more details - S62G-3662)
10. PROBLEM / QUESTION
I encountered error message 'DBI0050E The Version of
DATABASE 2 OS/2 Installed will not Support this
version of DDCS/2' while installing DDCS/2 after I
installed DB2/2.
SOLUTION / ANSWER
If you installed the DB2/2 Single User product and
specified 'STANDALONE' support. DDCS/2 cannot be
installed.
22 DB2/2 And DB2/6000 Questions and Answers
Reinstall DB2/2 Single User and specify either Client
or Client with Local Database support.
11. PROBLEM / QUESTION
I attempted to do a redirected install, and received
error message 'DBI00016E not enough space to perform
the install request'.
SOLUTION / ANSWER
There is not enough disk space on the boot drive to
copy temporary files. To use another drive to store
the temporary files, refer to the DB2/2 Installation
Guide p. 6.
12. PROBLEM / QUESTION
I received DBI0052 during the installation of DDCS/2
2.0 on DB2/2 1.0.
SOLUTION / ANSWER
Check the following:
a. Make sure that CM/2 or ES 1.0 Communications
Manager is installed.
b. Make sure that the APPC.DLL exists in the
\CMLIB\DLL\ directory. If it does not, you will
need to reinstall Communications Manager making
sure that the APPC APIs are installed as one of
the options.
c. Make sure that if you are installing the
Multiuser version of DDCS/2 that you have the
Client/Server version of DB2/2 installed.
13. PROBLEM / QUESTION
I'm getting DBCID error 1604.
SOLUTION / ANSWER
The response file being used by DBCID is
incompatible.
Make sure that when DBCID is run from the directory
containing the server code, the response file has the
keywords DBxxxx. If DBCID is run from the distributed
feature directory, the response file has DCFxxxx
keywords. The DBCID command is different for the
server and for the distributed client feature.
DB2/2 and DDCS/2 23
Note: 1604 is a general error so this is just one
possible cause. (refer to DB2/2 Installation guide
pages 27-28 and 33-34.
14. PROBLEM / QUESTION
I'm getting error LSI0006 during reboot after DB2/2
installation
SOLUTION / ANSWER
The IBMLANLK program did not working properly (see
the first Q and A in this section).
Add DEVICE=C:\OS2\INSTALL\IBMLANLK.SYS
C:\OS2\INSTALL\ IBMLANLK.LST
RUN=C:\OS2\INSTALL\IBMLANLK.EXE
C:\OS2\INSTALL\IBMLANLK.LST
15. PROBLEM / QUESTION
How do I update the database manager configuration
from the command line?
SOLUTION / ANSWER
Type "dbm update database manager configuration using
XXXXXXX ".
16. PROBLEM / QUESTION
I'm getting DBI0021E during DBINST remove or install:
"Invalid PATH C:\OS2\INSTALL\IBMLANLK".
SOLUTION / ANSWER
The achive bit for IBMLANLK was probably set, use
ATTRIB -A IBMLANKLK to turn it off.
17. PROBLEM / QUESTION
I'm getting a codepage error during migration of DB
from EE1.3 to DB2/2.
SOLUTION / ANSWER
The codepage is set on OS/2 via the parameter
CODEPAGE. Reset the codepage on the new machine,
reboot, and try to migrate the DB again.
18. PROBLEM / QUESTION
24 DB2/2 And DB2/6000 Questions and Answers
I am trying to run a Windows DB application from a
WIN-OS2 session and connect to a DB2/2 machine.
SOLUTION / ANSWER
To use Windows applications the DB2/2 server version
is required.
19. PROBLEM / QUESTION
The performance of a SELECT is very slow.
SOLUTION / ANSWER
The index may be defined in the wrong logical order
for this select. Create a new index with the column
being selected as the primary key value.
20. PROBLEM / QUESTION
I'm having problem wih CID install while using the
example in the installation guide which indicated /R=
as a parameter.
SOLUTION / ANSWER
Use the correct syntax of /R:.
21. PROBLEM / QUESTION
I'm trying to create a remote database on the server
from the client machine and the client hangs, and the
db is not created.
SOLUTION / ANSWER
You cannot 'easily' create a database from a client.
Either create it locally on the server or write a
DARI application to create a database that can be
invoked from the client.
22. PROBLEM / QUESTION
Can I install DB2/2 on a file server and allow users
to execute DB2/2 from the file server?
SOLUTION / ANSWER
No, only one connection is allowed for each DB2/2
user. This will prevent other users from accessing
the DBs. Also, it will pose integrity issues if they
use the same DB on the LAN.
23. PROBLEM / QUESTION
DB2/2 and DDCS/2 25
Why does a DBMBAK directory get created when you
perform a CID install?
SOLUTION / ANSWER
In your CID control file the following line exists,
requesting a backup of the existing version of
database manager: "DBBackup System=X:\PATH". If you
do not want to back up your existing version, or do
not have a current version, you do not need this
line.
24. PROBLEM / QUESTION
Unable to use the default USERID and PASSWORD
provided by DB2/2 so that I have a userid set up with
SYSADM authority.
SOLUTION / ANSWER
Copy NET.ACC from DB2/2 installation diskette #1.
This will give you the default userid.
NOTE: You will lose any previously defined userids
for that server.
25. PROBLEM / QUESTION
How do I load DB2/2 DLLs only when needed?
SOLUTION / ANSWER
Use the LOADONCALL Linker option.
26. PROBLEM / QUESTION
I am receiving DBI0019E Unexpected PM error WIN1302W.
SOLUTION / ANSWER
Corrupted IBMLVL.INI file. Rename the file to
something else attempt another DB2/2 install.
27. PROBLEM / QUESTION
After installing CAE/DOS on a DOS/Windows machine,
there was a problem booting the machine.
SOLUTION / ANSWER
Make sure you are loading LSL.COM using the HIGH /L
option as opposed to simply HIGH. What happens is
that the two are competing for the same place in
memory.
26 DB2/2 And DB2/6000 Questions and Answers
28. PROBLEM / QUESTION
DBI0029E received during install of DB2/2 V1.x.
SOLUTION / ANSWER
One cause of this error is if you copy the install
diskettes to your hard drive for install, but do not
use the XCOPY with the /s option. There are
subdirectories that also must be copied over.
APPLICATION DEVELOPMENT
_______________________
1. PROBLEM / QUESTION
a. I'm getting SQL0805 with a DB2/2 server and DBM
clients while running the DBM command line
interface.
b. I'm getting SQL0818N when I access a database
remotely from the DBM Command Line Processor
(CLP) and REXX programs.
SOLUTION / ANSWER
The command line interface is not self-binding, so
the package names can't be be found.
Manually bind the .BND files to the database by doing
the following:
x:\SQLLIB\SQLBIND @SQLUBIND.LST dbname (where x: is
the DB2/2 installed drive).
2. PROBLEM / QUESTION
a. My Micro Focus program traps in NETAPI.DLL at the
STOP RUN statement.
b. The UPPDATE.SQC sample program in DB2/2
Programming Guide traps in DOSCALL1.DLL
c. I'm getting a TRAP E in SQLT.DLL with DB2/2.
SOLUTION / ANSWER
The correct LINK options for the supported languages
are as follows:
1> CSET/2 link386 /NOI /ST:32000 "objfile",,,sql_dyn
2> MS 6.0 link386 /ST:32000 "objfile",,,sqldyn16.lib
DB2/2 and DDCS/2 27
(For the correct syntax see p. 28 of DB2/2
Programming Guide S62G-3665)
Note: All known stack-related problems have been
resolved in the DB2/2 Select pak 7010.
3. PROBLEM / QUESTION
I'm trying to compile the sample program on p. 30-31
of the DB2/2 Query Manager Programming Guide and
Reference, and I'm getting an error on the DSQCIC
function call.
SOLUTION / ANSWER
The 'include' file dsqcommc.h has the option CEDCL in
the function definition for DSQCIC(), and this option
is not recognized by your 'C' compiler.
4. PROBLEM / QUESTION
How do I select into SQLDA then insert data from the
SQLDA into another table?
SOLUTION / ANSWER
Be sure that the number of VALUES you are inserting
into the table matches the actual number of columns.
For example, "INSERT INTO USERID.TABLENAME VALUES(?,
?, ?)". The number of wildcard symbols should be
equal to the SQLDA (number of columns).
5. PROBLEM / QUESTION
My application was working on ES1.0. When I moved to
DB2/2 it TRAPS in SQLR.DLL and my program uses
multiple threads.
SOLUTION / ANSWER
This is caused by not allocating a large enough stack
for the spawned thread.
Increase the stack to 32k for the DOSCREATETHREAD
OS/2 API call.
6. PROBLEM / QUESTION
The precompiler generates the following COBOL code:
88 SQL_CONNECT_STMT VALUE1 WHEN SET TO FALSE IS ZERO.
SOLUTION / ANSWER
28 DB2/2 And DB2/6000 Questions and Answers
You must have MicroFocus V3.0 or higher. Using V3.0
this statement is fine but, if you use an earlier
version it will not work.
7. PROBLEM / QUESTION
My cobol sample program from the DB2/2 programming
guide UPDATE.SQB traps. I'm using MicroFocus COBOL
v3.1 compiler.
SOLUTION / ANSWER
COBLIB is not being linked.
Check the link options as follows:
link /ST:64000 /PM:VIO
update.obj,,,sqldyn16+coblib+doscalls
Note: coblib must be linked before doscalls or there
will be a trap.
8. PROBLEM / QUESTION
I'm getting error SYS2070 "System Cannot Demand Load
SQLAK32.SQLAALOC" when running a program I compiled
and linked with DB2/2. My application was originally
written using ES 1.0 Database Manager.
SOLUTION / ANSWER
The NOI (No Ignore Case) option is required and MUST
be specified when linking a C SET/2 2 32-bit
application. (see p. 28 of the DB2/2 Programming
Guide).
Specify the required link options for C SET/2 32-bit
applications. NOI is one required option. You must
also link with the DB2/2 32-bit library, SQL_DYN.LIB.
9. PROBLEM / QUESTION
Are there application development tools shipped with
DB2/2?
SOLUTION / ANSWER
Yes, all of the required prototypes and libraries are
included with DB2/2 Single User and DB2/2 Client
Server.
10. PROBLEM / QUESTION
DB2/2 and DDCS/2 29
I'm getting sys3175 in SQLAPI.DLL with CS:EIP=
005B:11E3331BDE.
SOLUTION / ANSWER
You may have linked the application with the 16 bit
library, SQLDYN16.LIB.
For 32-bit applications the SQLDYN.LIB library must
be used during the link stage of application
development.
11. PROBLEM / QUESTION
My Smalltalk 2.0 application traps in doscall1
(sys3171).
SOLUTION / ANSWER
Smalltalk 2.0 is an 16-bit application which uses the
API REXXAPI.DLL (SQLVAR in particular) which is not
converted by DB2/2 to 32 bit.
This is a permanent restriction for 16-bit
applications which use the REXXAPI.DLL.
12. PROBLEM / QUESTION
What host languages does DB2/2 support, and what
version of COBOL do I need?
SOLUTION / ANSWER
16-bit: Microsoft C v6.0, WATCOM FORTRAN v9.01 level
D, MicroFocus COBOL V3.0.
32-bit: IBM C Set/2 v1.0, WATCOM F77/386 v9.01 level
D, and REXX.
13. PROBLEM / QUESTION
Why do I get SQL0752 when I connect to a database? I
use to get SQL1098.
SOLUTION / ANSWER
DB connections now allow a connect if you are already
connected, provided that the application is not in
the middle of a unit of work.
The application program should be changed because it
should not be doing a connect while there is an open
unit of work. A commit followed by a connect should
be done.
30 DB2/2 And DB2/6000 Questions and Answers
14. PROBLEM / QUESTION
I want to print the number of rows being effected by
an update by printing the SQLCA.SQLERRD[3] field.
SOLUTION / ANSWER
In C, arrays are indexed from 0 so the array should
be specified as SQLCA.SQLERRD[2].
15. PROBLEM / QUESTION
My COBOL application works if I use the Animator but,
it cannot find any SQL functions when I don't use the
Animator.
SOLUTION / ANSWER
You may not be specifying the SQLDYN16.LIB when
linking the application.
link /ST:64000 /PM:VIO app1.obj,,,sqldyn16;
16. PROBLEM / QUESTION
How do I bind applications at runtime?
SOLUTION / ANSWER
The best way is to have a DBADM or SYSADM bind all of
the
.BND files to the databases after you install any
new application.
The other method is to have the application bind
using the API SQLABNDR, this will bind the BND files
to the database at runtime. (see p. 5 of the DB2/2
Programming Reference S62G-3666)
17. PROBLEM / QUESTION
I can't compile my ES 1.0 application in DB2/2 using
Microsoft C 6.0.
SOLUTION / ANSWER
Be sure that you have set environment variables as
described on p. 15 of DB2/2 Programming Guide. (see
p. 17 for compile options)
18. PROBLEM / QUESTION
I'm getting SQL30080 error with APPC code
F015-00000000.
DB2/2 and DDCS/2 31
SOLUTION / ANSWER
Increase your stack size and relink your application.
19. PROBLEM / QUESTION
I had authorization problems when using QM APIs.
USERID could access everything, but no one else
could.
SOLUTION / ANSWER
The tables were qualified by USERID and thus only
USERID could access them.
20. PROBLEM / QUESTION
I can't get the DBM command line interface to work
from an OS/2 CMD file. I'm using the "\" character
to allow multiple lines in the CMD file.
SOLUTION / ANSWER
Make the file into a REXX command file (/* */ in
first line) and use the "," character as the
continuation character.
21. PROBLEM / QUESTION
Why am I getting a SQLCODE of 0 when I should be
getting SQL0100?
SOLUTION / ANSWER
You are getting the 0 because you are closing the
cursor before checking for SQLCODE therefore the
SQLCODE is from the CLOSE CURSOR operation not the
FETCH.
22. PROBLEM / QUESTION
My QM callable interface application will not work.
I cannot pass global variable with the date.
SOLUTION / ANSWER
In the query, you must enclose the &GLOBALVAR with
single quotes if the variable is a date or a string.
If it is a number, then it is will work without the
quotes.
23. PROBLEM / QUESTION
32 DB2/2 And DB2/6000 Questions and Answers
My PM application causes the machine to hang while I
connect to a DB2/2 database.
SOLUTION / ANSWER
The connect statement is preceded by a PM windows
creation api. This hides the logon panel, but in
this case the whole machine hangs. Try moving the
connect statement to the begining of the program.
24. PROBLEM / QUESTION
I can't get multiple DBM calls from to work from a
.CMD file.
SOLUTION / ANSWER
Prefix each DBM call with 'call DBM ....'.
25. PROBLEM / QUESTION
I'm having trouble linking with SQL_DYN.LIB. Do I
need to use the SQL_STAT.LIB libraru?
SOLUTION / ANSWER
You should be linking to SQLDYN16.LIB. The
SQL_STAT.LIB is no longer used with DB2/2. It was
used in previous releases.
26. PROBLEM / QUESTION
How do I use data from an SQL query in a REXX
program?
SOLUTION / ANSWER
Try running the SQL query from the REXX program and
then opening a cursor, fetching the data into a host
variable until the fetch results in EOF (-100). (see
DB2/2 Programming Guide)
27. PROBLEM / QUESTION
I created a database and was getting an SQL0805N
while trying to access the data.
SOLUTION / ANSWER
Recreate the database and use QM to connect, the QRW
plans will be bound to the database.
28. PROBLEM / QUESTION
DB2/2 and DDCS/2 33
Are stored procedures static or dynamic, and where
can I find out the package names of stored
procedures?
SOLUTION / ANSWER
They can be static or dynamic based on how the server
DLL was created. If the SQL is dynamic there will be
no package. If a .SQC file was used, and a .BND file
bound to the database, the plans will be found in
SYSIBM.SYSPLANS.
29. PROBLEM / QUESTION
Why does DB2/2 require so much extra log space when a
large unit of work is being performed?
SOLUTION / ANSWER
Reserved space is allocated for a potential ROLLBACK
of a unit of work. This reserved space is logical
space that is not used until the ROLLBACK operation
would occur. Therefore a SQL0964 error (Log full)
will occur unless the required space is available.
30. PROBLEM / QUESTION
Why do I have SQL0501 errors occuring?
SOLUTION / ANSWER
The SQL0501 is being caused by attempting to use a
cursor after closing, or closing a cursor after a
commit.
31. PROBLEM / QUESTION
How can a DDCS/2 application refer to a table on
DB2/MVS without having to qualify the table?
SOLUTION / ANSWER
You need to create an TSO id then prep, bind, and
create the table with this ID. Then you must grant
access to public.
32. PROBLEM / QUESTION
How do I do a backup from a remote machine?
SOLUTION / ANSWER
Refer to the DARI information in the DB2/2
Programming Guide and Reference.
34 DB2/2 And DB2/6000 Questions and Answers
33. PROBLEM / QUESTION
How many table/view references are supported in a
single SQL statement?
SOLUTION / ANSWER
The total number of tables and views that can be
referenced in a single SQL statement is 15.
34. PROBLEM / QUESTION
Does DB2/2 support the Pascal language?
SOLUTION / ANSWER
We do not support the Pascal programming language.
35. PROBLEM / QUESTION
How can I access another users tables without having
to specify the table qualifier every time?
SOLUTION / ANSWER
Create a view with full authority on the table you
wish to access.
36. PROBLEM / QUESTION
Can users update long varchar data via REXX, CLP,
etc?
SOLUTION / ANSWER
No, long varchar data can only be updated to the
database via a C program.
37. PROBLEM / QUESTION
I am receiving the following compile error using a 16
bit compiler:
"_SYSTEM" is missing.
SOLUTION / ANSWER
Use the complile option -DSQL16to32 as documented in
the Programming Guide.
38. PROBLEM / QUESTION
Can you concatenate two string columns together as
part of a SELECT statement and return only one
column?
DB2/2 and DDCS/2 35
SOLUTION / ANSWER
No. This can be done in DB2/MVS but not in DB2/2.
39. PROBLEM / QUESTION
How can you see who is holding locks on db tables?
SOLUTION / ANSWER
Use the utility SQLPLOCK. This utility is on
Compuserve in the IBMDB2 forum. If using DB2/6000
V1.0 the database monitor functions may also be used
to gather locking information.
40. PROBLEM / QUESTION
Why does the DB2 precompiler reject host variables of
length greater than 254 when using FORTRAN?
SOLUTION / ANSWER
This is due to the inability of FORTRAN to handle
structure type variables and variable length
variables. Workarounds include:
a. Use C or COBOL
b. Use the SQLDA structure in FORTRAN.
c. PROBLEM / QUESTION
How do you turn on the USEREXIT parameter in the
database configuration from the command line
interface?
SOLUTION / ANSWER
Perform the following CLP command: DBM UPDATE
DATABASE CONFIGURATION FOR <dbname> USING USEREXIT ON
COEXISTENCE
___________
1. PROBLEM / QUESTION
I'm getting SQL0804N when to try to connect to a
DB2/2 DB. The table was imported from a Lotus
Datalens spreadsheet.
SOLUTION / ANSWER
There is a fix from Lotus for this problem.
36 DB2/2 And DB2/6000 Questions and Answers
The fix is now available from Lotus and can be
obtained from your closest Lotus Bulletin Board
System or contact Lotus Technical support.
The package name is DLENSDRV.ZIP under '123 for OS2'.
The files must be unzipped into a temporary directory
then use INSTALL.EXE to complete the installation of
the fix.
2. PROBLEM / QUESTION
I'm having problems installing ES 1.0 on OS/2 2.1.
SOLUTION / ANSWER
There is a workaround for this problem. You must do
the following:
There's file ESSTART.BAK that comes with OS/2 2.1.
Rename the ESSTART.BAK on the first diskette of OS/2
2.1 to ESSTART.CMD and copy it to the OS2/INSTALL
directory. Also copy the ESSTART.CMD file to the ES
1.0 installation diskette.
3. PROBLEM / QUESTION
I want to know how to use Netware Requester and DB2/2
1. 0. What protocol can I use to setup the client
and server?
SOLUTION / ANSWER
For DB2/2 1.0 use, APPC or NETBIOS protocol. You
cannot use the IBM Netware Requester Protocol Driver.
LAPS supports Netware Requester for OS/2 coexistence
by using the IBM Netware Requester Support Protocol
Driver (refer to the co-existence guide S96F-8311).
4. PROBLEM / QUESTION
Can DB2/2 1.0 use Novell Netware Communications
Protocols?
SOLUTION / ANSWER
No, but NETBIOS can coexist on the same card with
Netware.
You can use the APPC supplied with CM/2. NETBIOS
comes as part of LAPS with NTS/2, as LAPS (NETBIOS
support) is no longer part of Communications Manager.
5. PROBLEM / QUESTION
DB2/2 and DDCS/2 37
Can I set up a DB2/2 1.0 server and client on a
Novell LAN?
SOLUTION / ANSWER
Yes. You will need the LAPS (Lan Adapter Protocol
Support) portion of NTS/2 (Network Transport
Services/2) from IBM installed on both the Server and
Client. This is required for NETBIOS support.
6. PROBLEM / QUESTION
I'm unable to logon to the LAN after DB2/2 1.0
installation.
SOLUTION / ANSWER
DB2/2 1.0 updates UPM from version 2.0 to version 3.0
during installation.
Reinstall the Lan Requester/Server 2.0 on the system
or install Lan Requester/Server version 3.0 on the
machine after DB2/2 1.0 has been installed. So as to
have consistent versions of UPM and the LAN.
MISCELLANEOUS TOPICS
____________________
1. PROBLEM / QUESTION
Why am I getting SQL0101 error?
SOLUTION / ANSWER
This is caused by insufficient statement heap size in
the database configuration.
Increase the statement heap size from 64 to 255
(max). The default is 64 in DB2/2 (for server) as it
was in ES 1.0. A query that runs in ES 1.0 may not
work in DB2/2 even if the statement heap size is the
same as DB2/2 has more memory requirements.
The SQL0101 may also be caused by referential
integrity limitations when processing UPDATEs.
2. PROBLEM / QUESTION
I'm getting SQL5046 - sqlenseg is too small.
SOLUTION / ANSWER
Increase SQLENSEG to the max 8192.
38 DB2/2 And DB2/6000 Questions and Answers
The SQLENSEG parameter does not commit the memory
unless it is required, therefore setting it at the
maximum should not result in memory problems. If
other DBM parameters change, you may receive an
incompatibility error, so this solution applies in
this case as well.
3. PROBLEM / QUESTION
What is the default userid and password?
SOLUTION / ANSWER
The default userid is "USERID" and the default
password is "PASSWORD" for UPM SYSADM authority.
4. PROBLEM / QUESTION
The OPEN database option is not highlighted, which
prevents you from creating a new database on my
machine. This is in Query Manager, when you select
NEW, which is the top line of the database list, and
go to ACTION items.
SOLUTION / ANSWER
This will happen if you installed the DB2/2 Single
User product and selected client only (with no local
database support).
Type DBINST, select REINSTALL, and specify Client
With Local Database support. Load the diskettes as
requested, and reboot when the reinstallation
procedure is completed.
5. PROBLEM / QUESTION
How do I get the DB2/2 and DDCS/2 Select Paks and
Service Paks from Compuserve?
SOLUTION / ANSWER
On Compuserve do the following:
a. Go to IBMDB2
b. Choose option #4 Forum OS2DF2
c. Go into libraries section (4)
d. Search for the latest service pak, by name.
6. PROBLEM / QUESTION
DB2/2 and DDCS/2 39
When do negative return codes appear and how are
errors handled?
SOLUTION / ANSWER
Negative SQL codes will be returned if any SQL
function call fails. This return code will be
assigned to the SQLCA.SQLCODE structure. It is the
application's responsibility to capture the error
information.
7. PROBLEM / QUESTION
How can I specify the ISO DATE format YYYY-MM-DD when
the default DATE format used with COUNTRY USA is
MMDDYY?
SOLUTION / ANSWER
DB2/2 determines the DATE format to be used based on
the Country Code in CONFIG.SYS. DB2/2 Installation
does not allow the user to specify the DATE format to
be used.
The DATE is always stored the same way within the
actual database. However, each application can
specify the format of DATE data passed to it by using
the /F=format option with either the SQLPREP or
SQLBIND commands. The default format (if no /F option
is specified) is based on the COUNTRY code. However,
this presents a problem if the customer is using the
interactive debug mode supported by Micro Focus COBOL
to interactively debug a program. In this case,
MicroFocus does an SQLPREP and SQLBIND "under the
covers" in order to connect to the database for
interactive debugging. In this case, the user does
not issue the SQLPREP or SQLBIND commands and so
cannot specify the DATE format to be used using the
/F=format option.
However, there is a MicroFocus add-on product which
the customer can purchase called Host Compatibility
Option (HCO). This makes DB2/2 as compatible as
possible with the host DB2 product. (The host DB2
product allows the user to specify the format of the
DATE required).
One of the options supported by HCO permits the user
to specify the DATE format required by the MicroFocus
COBOL program that is being tested. This in turn
makes it easier for a customer to develop and debug
applications within an OS/2 DB2/2 environment that
will be run in a production environment on a host
DB2/2 environment.
40 DB2/2 And DB2/6000 Questions and Answers
8. PROBLEM / QUESTION
How do I click on the OK button if I'm installing
DB2/2 without a mouse?
SOLUTION / ANSWER
Press Alt-Up Arrow to get to the notebook tabs, then
use the tab key to select OK and press Enter.
9. PROBLEM / QUESTION
I'm getting SYS1041 when I attempt to build the
sample database using the SQLSAMPL program.
SOLUTION / ANSWER
You may have installed DB2/2 as a client only with no
database support. This means that no databases may
reside on this machine.
Type DBINST, select REINSTALL, and specify Client
With Local Database support. Load the diskettes as
requested, and reboot when the reinstallation
procedure is completed.
10. PROBLEM / QUESTION
Which packages of DB2/2 can store databases on a
machine?
SOLUTION / ANSWER
Both DB2/2 multi-user and single-user versions can
create databases. For the single-user version,
configure it as a client with local databases. For
the multi-user version, configure it as a server.
11. PROBLEM / QUESTION
Does DB2/2 allow the use of extended SBCS characters
in the userids to access local DB2/2 databases or
host databases through DDCS/2?
SOLUTION / ANSWER
No. This restriction is documented in "Appendix B:
DB2/2 Naming Rules" on p.209 of Database 2 OS/2 Guide
(S62G-3663).
12. PROBLEM / QUESTION
How do I create a SYSADM user from UPM?
DB2/2 and DDCS/2 41
SOLUTION / ANSWER
Any ADMINISTRATOR or LOCAL ADMINISTRATOR created
through UPM by default becomes a SYSADM to DB2/2.
13. PROBLEM / QUESTION
How do I get a report set up with headers at the
break points?
SOLUTION / ANSWER
Set breaks with headers in the REPORT details within
QM.
14. PROBLEM / QUESTION
Is there a utility for recreating the DB2/2 icons?
SOLUTION / ANSWER
No. There is a fax that explains how to set it up
again if they need to be recreated.
15. PROBLEM / QUESTION
How do I use the forcein parameter for filetmod on
import?
SOLUTION / ANSWER
If you are using SQLDBS do the import then filetmod
must be a host variable. Filetmod does not need to
be a host variable if you are using the DBM command
line processor.
16. PROBLEM / QUESTION
I'm getting SQL01042C during STARTDBM.
SOLUTION / ANSWER
The error may be caused by a corruptted NET.ACC file.
This file is accessed during STARTDBM. To resolve
this you can copy the NET.ACC file from diskette #1
of the DB2/2 installation diskettes. Following this,
you need to catalog the database before the database
can be accessed.
Note: You will lose the userids that you have created
on this machine as the NET.ACC file contains this
data.
17. PROBLEM / QUESTION
42 DB2/2 And DB2/6000 Questions and Answers
I'm getting 'log full' errors (SQL3186) when I issue
a large number of transactions.
SOLUTION / ANSWER
You must either issue smaller numbers of transactions
followed by commits to free up log space or allocate
more log space in the DB configuration.
18. PROBLEM / QUESTION
I'm getting SQL0551 while performing an SQL command
and I don't have the required authority to perform
the requested operation.
SOLUTION / ANSWER
Try performing an SQLBIND @SQLUBIND.LST <database>.
This has resolved the problem on multiple occasions
although this is not the only cause. You should
always check the authority level of the user against
the request they are trying to perform to ensure it
is OK.
19. PROBLEM / QUESTION
The FFST log contains a number of Database Manager
entries originating from SQLO with a probe point of
x'0A'. Is this a problem?
SOLUTION / ANSWER
Not necessarily. FFST log entries with this
originator and probe point are generated whenever a
negative SQLCODE is placed into an SQLCA. Get the
hexadecimal value for the SQLCODE from the SQLCA
logged in the SQLCA, convert it to a negative decimal
number, and look up the corresponding SQL error
message in the DB2/2 Messages and Problem
Determination Guide to determine the actual error.
20. PROBLEM / QUESTION
Is an integer greater than 10 significant digits
treated as a decimal?
SOLUTION / ANSWER
Yes. Any number with greater than 10 significant
digits is treated as a decimal within EE 1.3, ES 1.0,
and DB2/2.
21. PROBLEM / QUESTION
DB2/2 and DDCS/2 43
Receiving SQL1042C on STARTDBM.
SOLUTION / ANSWER
The system date was incorrect. Rather than replace
the NET.ACC file the ZEROMODL tool can be used to
correct 50 bytes in NET.ACC file. The next STARTDBM
will reinitialize the system date in the NET.ACC
file.
22. PROBLEM / QUESTION
Unable to print to a PostScript printer.
SOLUTION / ANSWER
This is not supported. You must use a different
driver (that is not PostScript).
23. PROBLEM / QUESTION
Is it possible to directly update any of the columns
in a SYSIBM table?
SOLUTION / ANSWER
No. No one can update, delete or insert records into
these tables except SYSIBM (DB2/2 itself).
24. PROBLEM / QUESTION
Experiencing problems cataloging new databases or
nodes.
SOLUTION / ANSWER
This could be caused by corruption in the directory
information. If you do not mind erasing what you
have already cataloged, you can delete the \sqldbdir
or \sqlnodir directories whenever you want. On the
first attempt to use them, they will be recreated
(obviously empty).
The database and node directory formats are also
inconsistent between DB2/2 and CAE/* (or SDK/*).
When the Client Application Enabler (CAE) products
and the Software Developer's Kit (SDK) products were
built, a new format was used.
25. PROBLEM / QUESTION
Is there any way to restore the database if all I
have is a backup of the \SQLnnnnn directory?
44 DB2/2 And DB2/6000 Questions and Answers
SOLUTION / ANSWER
Yes, although problems can occur and this is not
supported. First, create a new database with the
same name. Copy your copy of the database into the
directory just created. This should work.
In future, use the proper backup and restore utility
included with the product. This is the only
supported method.
26. PROBLEM / QUESTION
If DB2/2 has performed x hours of log file processing
(for inserts, updates or deletes) and there is a
COMMIT failure, how long will the ROLLBACK take to
complete?
SOLUTION / ANSWER
Essentially, you have to redo all of the
transactions, so the time it will take should be
approximately the same.
27. PROBLEM / QUESTION
Receiving an SQL0805N when attempting to run a window
application against my DB2/2 database. The Windows
application can be from an OS/2 machine or a native
DOS/Windows machine.
SOLUTION / ANSWER
This is caused because either your application
se or the database utilities are not bound to the
database. Either bind your application or execute a
bind against @db2ubind.lst, @ddcsbind.lst or
@sqlubind.lst as appropriate for your installation.
28. PROBLEM / QUESTION
How can I move a big database from one machine to
another?
SOLUTION / ANSWER
a. Turn copy protect off in your database
configuration.
b. BACKUP the database to a LAN drive or a tape.
c. RESTORE the database to the new machine using the
CREATE NEW option.
DB2/2 and DDCS/2 45
29. PROBLEM / QUESTION
Receiving an SQL1042C when doing a STARTDBM.
SOLUTION / ANSWER
There are many causes. One possible cause is an
incorrect system date/time; another is database
corruption of some kind.
30. PROBLEM / QUESTION
When printing from QM, the extra blank pages and
pages with only a control character were printed with
the report.
SOLUTION / ANSWER
Properly define a printer nickname and a profile with
the nickname for the database. Be sure to activate
the profile.
31. PROBLEM / QUESTION
How can I change the workstation name that I set
during the installation of DB2/2?
SOLUTION / ANSWER
This name is the NNAME setting in the database
manager configuration. You can change this with the
command: UPDATE DATABASE MANAGER CONFIGURATION USING
NNAME <new nname>.
32. PROBLEM / QUESTION
Can a DB2/2 standalone machine act as a client and
connect to remote databases?
SOLUTION / ANSWER
You can install DB2/2 as a standalone, or as a client
with standalone databases. The latter will allow you
to connect to remote databases.
33. PROBLEM / QUESTION
How many times should a server and a client beep when
they have enough NETBIOS resources?
SOLUTION / ANSWER
3 times and once respectively.
46 DB2/2 And DB2/6000 Questions and Answers
DB2/6000 AND DDCS/6000
______________________
COMMUNICATIONS & DDCS
_____________________
1. PROBLEM / QUESTION
When I connect to a SQL/DS machine I'm getting
SQL30080 0010-00000000 with sense data 08640001.
SOLUTION / ANSWER
The SQL/DS server machine was not brought up with the
correct parameter to allow DRDA protocol.
When bringing up the SQL/DS machine, use:
SQLSTART DB(dbname) parm(protocol=AUTO) OR
SQLSTART DB(dbname) parm(protocol=DRDA)
2. PROBLEM / QUESTION
I can't get DBM DROP DATABASE for a host database to
work.
SOLUTION / ANSWER
If you want to execute a DROP DATABASE against any
host database, you must write an application (in C or
another language) to prepare the statement, and then
execute it.
3. PROBLEM / QUESTION
My client gets SQL30080 with sense data 081C0103.
SOLUTION / ANSWER
This is usually caused by having an incorrect
destination address in the LINK configuration of the
client.
Check this and if necessary, change it to the correct
one.
4. PROBLEM / QUESTION
Only one user can connect to DB2/MVS.
DB2/6000 and DDCS/6000 47
SOLUTION / ANSWER
This is usually caused by missing Mod table
definitions on VTAM, so define the correct Mod tables
on VTAM and try again
This can also be caused by MAXREMOTE=1 on the DSNTIPE
panel of DB2 DDF install or MAXSESSIONS=1. Increase
one or both of these as needed.
5. PROBLEM / QUESTION
Can you use SELECT statements to select different
members of an AS/400 physical file (table)?
SOLUTION / ANSWER
No, even SQL/400 cannot do that. Only the first
member can be selected. (There may be some techniques
on AS/400 where you can fool the system by using
alias name for each member but, we are not aware of
any).
6. PROBLEM / QUESTION
My DDCS connection hangs in VTAM with PCINIT status.
SOLUTION / ANSWER
This may be caused by the wrong format in LOGMODE in
VTAM. The continuation line must start on column 16.
7. PROBLEM / QUESTION
I'm getting SQL30080 Reason Code 0A while trying to
issue a connect from a database client to the
database server.
SOLUTION / ANSWER
The number of the remote connections may have
exceeded the configured limit.
8. PROBLEM / QUESTION
DOS and Windows Clients userids cannot have the pound
sign (#). DB2MVS userids have #. How can I
workaround this problem?
SOLUTION / ANSWER
In DB2/MVS, you can use USERID TRANSLATION FUNCTION
to "translate" userids without the pound sign to
48 DB2/2 And DB2/6000 Questions and Answers
other userids with pound sign. This workaround has
to be done on MVS.
9. PROBLEM / QUESTION
I'm getting 0003-00000004 or 0003-00000005 APPC
errors on the client while connecting to a DB2/6000
Server.
SOLUTION / ANSWER
Both clients may be using the same Local LU (eg. LU1)
Ensure that all clients have a unique Local LU.
10. PROBLEM / QUESTION
I'm getting SQL30080 14 error.
SOLUTION / ANSWER
This may be caused by incorrectly cataloging the
workstation on the client.
11. PROBLEM / QUESTION
I'm getting SQL30061N when connecting to AS/400.
SOLUTION / ANSWER
On AS/400 use the command ADDRDBDIRE to add a local
database directory entry and use the name for TARGET
DATABASE in DCS directory.
12. PROBLEM / QUESTION
DBM EXPORT hangs or returns SQL1325N when I issue it
against a host database.
SOLUTION / ANSWER
EXPORT hangs because it tries to perform a DBM
CONNECT. If you use dependent LU you already have a
connection. The second connection will hang.
13. PROBLEM / QUESTION
Poor performance occurring with the DOS Client (ES
1.0 , DB2/2, CAE/DOS or SDK/DOS) when using Lan
Support Program Version 1.35 and the device driver
DXMT0MOD.SYS.
SOLUTION / ANSWER
DB2/6000 and DDCS/6000 49
Add the parameter PBA=0 to the device statement in
the CONFIG.SYS on the DOS Client. It should look
something like this: DEVICE=X:\LSP\DXMT0MOD.SYS
PBA=0 <parm2> <parm3> ...
14. PROBLEM / QUESTION
Having difficulty with connecting CAE/2 to DB2/6000.
Receiving an SQL30081 error reason code 24 using
CPI-C. This occurs during the connect.
SOLUTION / ANSWER
You must use the CP name of the OS/2 machine in the
REMOTE LU name field of the Logical Connection
Profile. To get this look at the FQ_CP_NAME under
DEFINE_LOCAL_CP in your NDF file. You can use other
defined Local LU names only if you set the
environment variable APPCLLU=<LOCALLU> where this
name matches up with the REMOTE LU name field of the
Logical Connection Profile.
15. PROBLEM / QUESTION
SQL0552N when binding to MVS database
SOLUTION / ANSWER
If AUTHID on MVS is set to blank this will cause your
userid to be translated to an ID that has no MVS
authority. Change the AUTHID to something else to
allow your authorities to be used.
INSTALL AND MIGRATION
_____________________
1. PROBLEM / QUESTION
If I am trying to install DB2/6000 or DDCS/6000, what
does it mean when a message appears stating that
sna.sna.obj does not exist?
SOLUTION / ANSWER
If you receive this, you have either selected the
cs_sna option in the DB2/6000 installation, or the
prerequisite option on the DDCS/6000 option. In both
cases, there is a check to ensure that you have the
correct version of SNA/6000 installed. This message
appears when SNA/6000 is not installed, the wrong
version is installed, or there is an installation
problem. The solution is to install or reinstall
SNA/6000.
50 DB2/2 And DB2/6000 Questions and Answers
APPLICATION DEVELOPMENT
_______________________
1. PROBLEM / QUESTION
I'm getting a SQLCODE of 0 when I expect a SQL0100.
SOLUTION / ANSWER
You are getting the 0 because you may be closing the
cursor before checking for EOF, thus the close cursor
was returning the 0 in the SQLCODE.
2. PROBLEM / QUESTION
Why does DB2/6000 require so much extra log space
when a large unit of work is being performed?
SOLUTION / ANSWER
Reserved space is allocated for a potential ROLLBACK
of a unit of work. This reserved space is logical
space that is not used until the ROLLBACK operation
would occur. Therefore, a SQL0964 error (Log full)
will occur unless the required space is available.
3. PROBLEM / QUESTION
Why am I getting SQL0501 errors occurring?
SOLUTION / ANSWER
This error is being caused by attempting to use a
cursor after it has been closed or attempting to
close a cursor following a commit.
4. PROBLEM / QUESTION
How do I do a backup from a remote machine?
SOLUTION / ANSWER
You need to use a DARI program. (see the DB2/6000
Programming Guide and Reference for more detail)
5. PROBLEM / QUESTION
How many table/view references are allowed in a
single SQL statement?
SOLUTION / ANSWER
The total number of tables and/or views that may be
referenced in a single SQL statement is 15.
DB2/6000 and DDCS/6000 51
6. PROBLEM / QUESTION
Can a user update long varchar data using the command
line processor?
SOLUTION / ANSWER
No. Long varchar data can only be updated to the
database via a C program.
7. PROBLEM / QUESTION
Why does the DB2 precompiler reject host variables of
length greater than 254 when using FORTRAN?
SOLUTION / ANSWER
This is due to the inability of FORTRAN to handle
structure type variables and variable length
variables. Workarounds include: 1. Use C or COBOL
2. Use the SQLDA structure in FORTRAN.
MISCELLANEOUS TOPICS
____________________
1. PROBLEM / QUESTION
I'm getting SQL0101 error.
SOLUTION / ANSWER
This is usually caused by an insufficient statement
heap size in the database configuration.
Increase the statement heap size from 64 to 255
(max). The default is 64 in DB2/2 (for server) as it
was in ES 1.0. A query that runs in ES 1.0 may not
work in DB2/2 even if the statement heap size is the
same as DB2/2 uses extra memory.
The SQL0101 may also be caused by referential
constraints limitations in cases of UPDATEs.
2. PROBLEM / QUESTION
I need information on the DB2/6000 call level
interface.
SOLUTION / ANSWER
This CLI is a callable SQL programming interface for
the C language. It is basically an applications
program interface for db access which uses function
52 DB2/2 And DB2/6000 Questions and Answers
calls to invoke dynamic SQL statements. It is an
alternative to embedded dynamic SQL.
3. PROBLEM / QUESTION
I'm getting SQL0551 while performing an SQL command.
SOLUTION / ANSWER
Try performing an SQLBIND @SQLUBIND.LST <database>.
This has resolved the problem on multiple occasions
although this is not the only cause. You should
always check the authority level of the user against
the request they are trying to perform to ensure it
is OK.
4. PROBLEM / QUESTION
Is an integer with greater than 10 significant digits
treated as a decimal?
SOLUTION / ANSWER
Yes. Any number with greater than 10 significant
digits is treated as a decimal within EE 1.3, ES 1.0,
and DB2/2.
5. PROBLEM / QUESTION
Is REXX supported with DB2/6000?
SOLUTION / ANSWER
No.
6. PROBLEM / QUESTION
How many shared segments does DB2/6000 get?
SOLUTION / ANSWER
It gets 2 shared segments as soon as a db2start is
issued, one for communication and one for the
database engine. After this it gets one segment for
every database in use, and another one if TRACE has
been started. Therefore, the number of shared
segments = 2+(# db in us e)+(1 if trace is running)
DB2/6000 and DDCS/6000 53
54 DB2/2 And DB2/6000 Questions and Answers
FEEDBACK QUESTIONNAIRE
______________________
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