i5/OS system value QCCSID

 

The default system value for QCCSID (coded character set identifier) is 65535.

Data tagged with this CCSID is not to be converted by the receiving system. You might not be able to connect to an unlike system when your i5/OS^® application requester (AR) is using this CCSID. Also, you might not be able to use source files that are tagged with this CCSID to create applications on unlike systems.

The CCSID used at connection time is determined by the job CCSID. When a job begins, its CCSID is determined by the user profile the job is running under. The user profile can, and as a default does, use the system value QCCSID.

If you are connecting to a system that does not support the system default CCSID, change your job CCSID. You can change the job CCSID by using the Change Job (CHGJOB) command. However, this solution is only for the job you are currently working with. The next time you will have to change the job CCSID again.

A more permanent solution is to change the CCSID designated by the user profiles used in the distributed relational database. When you change the user profiles, you affect only those users that need to have their data converted. If you are working with a DB2 Universal Database™ for iSeries™ application server (AS), change the user profile that the AS uses.

If an unlike application requester connects to a DB2^® UDB for iSeries application server using job CCSID 65535, the job will be switched to use the job default CCSID. The job default CCSID is determined by the job's language identifier (LANGID). For better performance, the job's CCSID should be switched to a value other than 65535 in this case. For example, the CCSID value can be changed to the value of the user profile under which the server jobs are run.

The default CCSID value in a user profile is *SYSVAL. This references the QCCSID system value. You can change the QCCSID system value that is used by all user profiles with the Change System Value (CHGSYSVAL) command. If you do this, you would want to select a CCSID that represents most (if not all) of the users on your system.

If you suspect that you are working with a system that does not support a CCSID used by your job or your system, look for the following indicators in a job log, SQLCA, or SQL diagnostic area:

Message

SQ30073

SQLCODE or DB2_RETURNED_SQLCODE

-30073

SQLSTATE

58017

Text

Distributed Data Management (DDM) parameter X'0035' not supported.

Message

SQL0332

SQLCODE or DB2_RETURNED_SQLCODE

-332

SQLSTATE

57017

Text

Total conversion between CCSID &1 and CCSID &2 not valid.

 

Parent topic:

User FAQs

 

Related concepts

i5/OS globalization

 

Related reference

Change Job (CHGJOB) command
Change System Value (CHGSYSVAL) command