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ABAPPERFORM_SHORTREF - PERFORM SHORTREF

SUBST_MERGE_LIST - merge external lists to one complete list with #if... logic for R3up rdisp/max_wprun_time - Maximum work process run time
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PERFORM

Reference

Syntax

PERFORM { { { subr
            | {subr|(sname) IN PROGRAM [prog|(pname)] [IF FOUND]}
            | {n OF subr1 subr2 ...}
            | {subr(prog) [IF FOUND]} }
            [TABLES itab1 itab2 ...]
            [USING a1 a2 ...]
            [CHANGING a1 a2 ...] }
        | { ON { {COMMIT [LEVEL idx]}
               | ROLLBACK } } }.

Effect

Calls a subroutine.

Additions

Specifies the subroutine:

subr - Subroutine subr of the same program.

subr$|(sname) IN PROGRAM $[prog$|(pname)$] - Specifies a subroutine statically or dynamically in any program.

n OF subr1 subr2 ... - Subroutine n from a list of subroutines.

subr(prog) - Obsolete: Specifies a subroutine statically in another program prog.

IF FOUND
Suppresses an exception if the subroutine is not found.

Specifies the parameters:

TABLES itab1 itab2 ...
Assigns internal tables itab1, itab2, ...to the table parameters of the same position.

USING a1 a2 ...
Assigns actual parameters a1, a2, ... to the formal parameters of the same position.

CHANGING a1 a2 ...
Assigns actual parameters a1, a2, ... to the formal parameters of the same position.

Specifies the execution:

ON COMMIT $[LEVEL idx$]
Registers the subroutine for execution with COMMIT WORK, where the execution order can be controlled using LEVEL.

ON ROLLBACK
Registers the subroutine for execution in ROLLBACK WORK.