ALLOC
ALLOC associates a dataset with a data definition name.
Operands
- ddname
- specifies the data definition name.
- dsname
- specifies the fully qualified dataset name.
- member
- specifies the member name in the dataset.
- SHR
- dataset exists but exclusive control is not required.
- OLD
- dataset exists and exclusive control is required.
Return codes
- The return code given by SVC 99
- For more information, see z/OS MVS Programming: Authorized Assembler Services Guide.
- 1702
- Invalid operand
Note:
- The dsname contains your user ID as the high level prefix for security reasons. Also, a user exit is provided for additional security handling of data definition names and dataset names. When you leave the member name off of the ALLOC command, a sequential dataset is allocated. For performance reasons, if the dataset has been migrated, the allocation request is refused.
- An allocation sample exit, CICSECX1, is provided with this command, to let installations perform security checking.