exit

Former Member — Thu, 16 Nov 2006 12:01:17 GMT

what are the functions of EXIT,STOP,CHECK,CONTINUE?

Re: exit

Former Member — Thu, 16 Nov 2006 12:03:46 GMT

Terminating Loops

ABAP contains termination statements that allow you to terminate a loop prematurely. There are

two categories of termination statement - those that only apply to the loop, and those that apply

to the entire processing block in which the loop occurs. The STOP and REJECT statements

belong to the latter group, and are described in more detail under Leaving Event Blocks [Page

966].

The termination statements that apply only to the loop in which they occur are CONTINUE,

CHECK, and EXIT. You can only use the CONTINUE statement in a loop. CHECK and EXIT, on

the other hand, are context-sensitive. Within a loop, they only apply to the execution of the loop

itself. Outside of a loop, they terminate the entire processing block in which they occur

(subroutine, dialog module, event block, and so on).

CONTINUE, CHECK, and EXIT can be used in all four loop types in ABAP (DO, WHILE, LOOP,

and SELECT).

Terminating a Loop Pass Unconditionally

To terminate a single loop pass immediately and unconditionally, use the CONTINUE statement

in the statement block of the loop.

After the statement, the system ignores any remaining statements in the current statement block,

and starts the next loop pass.

DO 4 TIMES.

IF SY-INDEX = 2.

CONTINUE.

ENDIF.

WRITE SY-INDEX.

ENDDO.

The output is:

1 3 4

The second loop pass is terminated without the WRITE statement being processed.

Terminating a Loop Pass Conditionally

To terminate a single loop pass conditionally, use the CHECK <condition> statement in the

statement block of the loop.

If the condition is not true, any remaining statements in the current statement block after the

CHECK statement are ignored, and the next loop pass starts. <condition> can be any logical

expression [Page 225].

DO 4 TIMES.

CHECK SY-INDEX BETWEEN 2 and 3.

WRITE SY-INDEX.

ENDDO.

The output is:

2 3

The first and fourth loop passes are terminated without the WRITE statement being

processed, because SY-INDEX is not between 2 and 3.

Exiting a Loop

To terminate an entire loop immediately and unconditionally, use the EXIT statement in the

statement block of the loop.

After this statement, the loop is terminated, and processing resumes after the closing statement

of the loop structure (ENDDO, ENDWHILE, ENDLOOP, ENDSELECT). In nested loops, only the

current loop is terminated.

DO 4 TIMES.

IF SY-INDEX = 3.

EXIT.

ENDIF.

WRITE SY-INDEX.

ENDDO.

The output is:

1 2

In the third loop pass, the loop is terminated before the WRITE statement is

processed.

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Re: exit

seshatalpasai_madala — Thu, 16 Nov 2006 12:06:47 GMT

Hi,

1) EXIT if in a loop endloop exits the loop, if in a procedure then exits the procedure. Any where else it exits the program.

2) STOP if executed in an executable program then its exits the processing block and then goes to the END-OF-SELECTION block.

3) CONTINUE can only be used in loops, this statement is used to stop the current loop pass and proceed with the next loop pass.

4) CHECK in a loop will stop the current loop pass and goes to the next loop pass if the logical condition is false else does nothing.

Regards,

Sesh

Message was edited by:

Seshatalpasai Madala

Re: exit

Former Member — Fri, 17 Nov 2006 00:03:00 GMT

Hi Madhav,

I think you need to go for Training .

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