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ABAP Complete Course / Internal Tables

REDUCE operator

Learn REDUCE operator in ABAP with a construct-specific explanation, a unique example, a practical boundary, and a mastery check.

10 min read • Intermediate

REDUCE operator is an atomic ABAP topic inside Internal Tables. The example below uses the actual construct named by the lesson rather than a generic placeholder.

Focus on what REDUCE operator changes: the input, binding, control path, object state, collection, runtime effect, or language contract. Then alter one value and verify that the behavior changes for a reason specific to this feature.

Topic-specific example

abap-04-09-reduce-operator.abap
abap Try It Live 
DATA(total) = REDUCE i( INIT s = 0 FOR n IN VALUE string_table( ( '1' ) ( '2' ) ) NEXT s = s + CONV i( n ) ).
Edge case / engineering note

Check the input collection shape, whether the operation mutates or returns a new value, and what happens for an empty collection.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

REDUCE operator Mastery Check →
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