CICS VSAM Transparency for z/OS, Version 1.2


Mapping an RRDS data set

Unlike a KSDS data set, an RRDS data set does not have a unique key that is part of the data set record. Instead, it uses a fullword relative record number (RRN) to uniquely identify each record.

There are two areas where converting an RRDS data set with CICS® VT is different to converting a KSDS data set. One concerns the DB2® primary key, and the other concerns how the data set is mapped. These differences are discussed in this section.

Note that you must be aware of the differences if you are manually mapping a RRDS data set. The automated mapping facility handles the differences for you.





Last updated: May 25, 2012 20:44:9