Program Compilation, Link-Edit and Execution › Batch Link-Editing and Execution

Batch Link-Editing and Execution

When you interface a batch program with the operating system, CA Datacom/DB is mainline and your program is a subroutine of CA Datacom/DB.

• The program is not sensitive to differences in operating system linkages.
• The User Requirements Table can be automatically opened before the program is called, and automatically closed when the program returns control to CA Datacom/DB, or the program can open and close the User Requirements Table.

You must link edit a User Requirements Table (URT) with your program. The DBXHVPR module (host variable processor) must be link edited with your program in addition to the User Requirements Table. DBXHAPR is required if using Dynamic SQL in a COBOL program.

The linkage editor ENTRY BEGIN statement indicates CA Datacom/DB is mainline. CA Datacom/DB calls your program at default entry point DBMSCBL.

Batch Program Execution

After the program has been link edited with the CA Datacom/DB interface, it may be executed.