ABAP Programing: String Concatenation

[kk_india_2023]

Hi,

*Code for string concatenation.

DATA: S5, S6 TYPE STRING.

S5 = 'SAP'.
S6 = 'ABAP'.
WRITE / S5 && S6.

OUTPUT: SABAP

WHY ONLY FIRST CHARACTER OF STRING 'S5' IS CONCATINATED WITH STRING 'S6' ?

PLEASE EXPLAIN.

THANK YOU.

[AlexGourdet]

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[Sandra_Rossi]

You'd better use the debugger. You would see that the issue is not with && but with DATA (how you used it).

You need to learn the effect of the comma and the effect of declaring a variable without an explicit type (implicit typing):

DATA: S5, S6 TYPE STRING.

ABAP Keyword Documentation: Chained Statements

ABAP Keyword Documentation: DATA, TYPE abap_type

[FredericGirod]

or use the good quote

data(S5) = `SAP`.<br>data(S6) = `ABAP`.<br>WRITE / S5 && S6.

[kk_india_2023]

Thank You Sandra Rossi...

[kk_india_2023]

Hi Sandra Rossi,

DATA: S5, S6 TYPE STRING.

Here Object S5 is not a STRING data type.

By default S5 is declared as a Character data type and hence S5 can store only single character.

This was the reason why I was getting the Warning: The VALUE specification is longer than the corresponding field. The VALUE specification will only be passed to the field length!

I thought that, I must declare S5 as a character array by specifying its length to store multiple characters such as:

DATA: S5(5), S6 TYPE STRING.

I corrected my mistake by self learning. If my understanding is still wrong, please correct me.

Thank You.

[Sandra_Rossi]

kk_india_2023 I'm glad to see that you have solved the issue. Yes you're right in everything you said. Congrats and thanks for the feedback 😄

For information, concerning S5(5), the trend is to avoid this short syntax form and to use the explicit longest one S5 TYPE C LENGTH 5.

(ABAP documentation says: "For reasons of legibility, it is best to include all information and always use the addition LENGTH instead of parentheses to specify the length len.")

[kk_india_2023]

Hi Sandra Rossi,

Yes I will follow the explicit longest syntax. Thanks a lot for correcting my mistakes. 😄

Best Regards,

KIRANKUMAR