Identifying VSAM records

You can identify records in data sets by key, by relative byte address (RBA) or extended relative byte address (XRBA), or by relative record number (RRN).

The RIDFLD (record identification field) option on the CICS file control commands identifies a field containing the record identification appropriate to the access method and the type of file being accessed. For most things you can do to a record (read, add, delete, or start a browse), you identify the record by specifying the RIDFLD option, except when you have read the record for update first. However, there is no RIDFLD for ENDBR, REWRITE, and UNLOCK commands.