ABAP TIP Check case sensitive

ABAP Check case sensitive

Let’s learn how to check upper/lower case in data variable.

After creating program, create 2 variables. First variable has only one lowercase character, Second variable has all lowercase alphabet. And if you compare with ‘CA’, the program check if the variable has a lowercase or not.

Starting the position of lowercase is saved to SY-FDPOS.

REPORT  zcase_test. DATA : gv_v1 TYPE string VALUE 'AbCD',        gv_v2 TYPE string VALUE 'abcdefghijklmnopqrstuvwxyz'. IF gv_v1 CA gv_v2.   MESSAGE 'There is lower case in variable.' TYPE 'I'. ELSE.   MESSAGE ' There is lower case in variable..' TYPE 'I'. ENDIF.

In contrast, you can also check upper case with the string consisted of upper case.

DATA : gv_v2 TYPE string VALUE 'ABCDEFGHIZKLMNOPQRSTUVWXYZ'.

Or system variable SY-ABCDE is replaced with 'ABCDEFGHIZKLMNOPQRSTUVWXYZ'.

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IF gv_v1 CA SY-ABCDE.