SAP ABAP SYNTAX FOR CHECK WITH IN LOOPS

Basic form

CHECK logexp.

Effect

CHECK evaluates the subsequent logical expression . If it is true, the processing continues with the next statement.

In loop structures like

DO... ENDDO

WHILE ... ENDWHILE

LOOP ... ENDLOOP

SELECT ... ENDSELECT

CHECK with a negative outcome terminates the current loop pass and goes back to the beginning of the loop to start the next pass, if there is one.

In structures like

FORM ... ENDFORM

FUNCTION... ENDFUNCTION

MODULE ... ENDMODULE

AT

CHECK with a negative outcome terminates the routine or modularization unit.

If CHECK is not in a loop or a routine or a modularization unit, a negative logical expression terminates the current event. In contrast, the statement REJECT terminates the current event, even from loops or subroutines.

If a CHECK produces a negative result in a GET event , the GET events in subordinate tables of the logical database are not processed either.

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