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Answer Posted / techy
* MADE UP OF ONE OR MORE PROGRAM COMMUNICATION BLOCKS (PCBs)
* DB PCB - DEFINES PROGRAM’S VIEW OF A IMS DATABASE
* WHENEVER A DATABASE VIEW DEFINED BY THE PCB IS ACCESSED
BY A CALL, THE RESULTS OF CALL ARE PASSED THROUGH THE PCB
TO PROGRAM
* PSB IS GENERATED BY PSBGEN MACRO
* PCB GIVES LOGICAL VIEW OF A DATABASE
* PORTION OF DATABASE THAT THE PROGRAM PROCESSES IS CALLED
APPLICATION DATA STRUCTURE
Sample PSBGEN
PRINT NOGEN
PCB TYPE=DB,DBDNAME=database-name,KEYLEN=20,PROCOPT=LS
SENSEG NAME=seg-name
SENSEG NAME=field-name,PARENT=seg-name
PSBGEN
END
KEYLEN IS THE LENGTH OF CONCATENATED KEY
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