topic Re: REDUCE not concatenating strings in Application Development and Automation Discussions

REDUCE not concatenating strings

MarcC — Tue, 11 Mar 2025 20:16:32 GMT

Why does the following code with REDUCE not concatenate the table into the string 'ABC'?

DATA t TYPE TABLE OF kna1. t = VALUE #( ( kunnr = 'A' ) ( kunnr = 'B' ) ( kunnr = 'C' ) ). DATA(log1) = REDUCE string( INIT x1 = '' FOR wa IN t NEXT x1 = x1 && wa-kunnr ). WRITE: /, log1. " A DATA log2 TYPE string. LOOP AT t INTO DATA(wa2). log2 = log2 && wa2-kunnr. ENDLOOP. WRITE: /, log2. " ABC

The LOOP approach works just fine.

Re: REDUCE not concatenating strings

MarcC — Tue, 11 Mar 2025 20:24:30 GMT

OK, I discovered it is because x1 was implicitly char(1) and could contain only one character. Here is the corrected code:

DATA t TYPE TABLE OF kna1. t = VALUE #( ( kunnr = 'A' ) ( kunnr = 'B' ) ( kunnr = 'C' ) ). DATA(log1) = REDUCE string( INIT x1 = CONV STRING( '' ) FOR wa IN t NEXT x1 = x1 && wa-kunnr ). WRITE: /, log1. " ABC

Re: REDUCE not concatenating strings

MBartsch71 — Wed, 12 Mar 2025 08:35:22 GMT

You can achieve the same by sing backticks ` instead of single quotes '.

Re: REDUCE not concatenating strings

Raifloresca — Wed, 12 Mar 2025 20:15:47 GMT

Hi,

You can declare the type of the X1 variable inside the REDUCE statement. That's what I would do. More details can be found in the REDUCE documentation

Regards.