What you need to know to understand this book

You need to have a good understanding of the area of CICS® for which you are responsible.

You should understand how the following terms are used in this book:

Browse request
A STARTBR, RESETBR, ENDBR, READNEXT, or READPREV application programming command.
Gap
When records are omitted from a CICS-maintained data table but are present in the source data set, the range of omitted keys is referred to as a "gap" in the key sequence.
Imprecise key
A record key that is specified with the GENERIC or GTEQ option in an application programming command.
Precise key
A record key that is specified without the GENERIC or GTEQ option in an application programming command.
Update request
A WRITE, DELETE, READ UPDATE, or REWRITE application programming command.
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