Using read-only variables

The following sections describe various considerations for using read-only variables:

Initializing read-only variables
Using default read-only variables
Ensuring correct values for &SIZE and &MAXSIZE
Using OAM read-only variables
Using &DSN for a partitioned data set
When the value of &USER is null
Using the &SYSNAME and &SYSPLEX read-only variables
Read-only variables on a data set rename

Parent topic: Read-only variables