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IMS DB: Top Proc Options to Use in PSB

PROCOPT in PSB of IMS DB Read More ⇢

IMS DB- SENSEG and SENFLD in PSB

Sensitive Segments: In a PSB maximum of 30,000 SENSEG statements we can code as per IMS V11. In PSB macro; Col…10 Col..16 Col…72 PCB TYPE=DB,DBDNAME=DATABASE, X PROCOPT=A,KEYLEN=22SENSEG NAME=A,PARENT=0,PROCOPT=G So, every PCB refers to a database. The description for each segment is already defined in DBD. So the segments we defined in PSB of PCB statement… Read More ⇢

IMS DB-Command Code ‘D’ and Proc Option ‘P’

Command codes enhances the database search in IMSDB. I want to say here about “D” command code and “P” proc option. Command Code Vs Proc Option We need to give Command code ‘D’ in all the SSAs top to bottom, except for last segment. Proc option-Indirectly acts as exclusive locks.… Read More ⇢

IMS DB: Why PCBs Must Give In Sequence In ENTRY

As we all know, PSB is a database, it represents database view to the application program. And, PSBs are combination of various PCBs. So each PCB represents to one segment. In the PSB generation, we can code in PCB blocks of sensitive segments and sensitive fields. To run each batch program , we need to supply Program-name and PSB-name in… Read More ⇢