Altering a full-function database
You can issue the ALTER DATABASE statement to change the description of a full function database in the IMS catalog. This works with both HALDB and non-HALDB databases.
The supported changes include, but are not limited to, changing the encoding, randomizer name and attributes, data capture exit routines. Depending on the database access type, some attributes do not apply so changes for them are not allowed. For a list of supported keyword attributes based on database access type, see the ALTER DATABASE syntax diagrams.
There are two scenarios for altering a HALDB database:
- If the HALDB has already been defined in the RECON then it should be altered in the RECON with DBRC batch CHANGE commands, or
- If the HALDB was just created with DDL, but it has not been defined to the RECON. You can then alter a HALDB database with an alter statement. You would then be able to alter the HALDB partition selection exit name (PSNAME in the DBD).