DDIF_FIELDINFO_GET type conflict

[former_member2492]

I am trying to find all date fields in a generic table.I create a dynamic table of the generic table DATATAB of exit EXIT_RSAQEXCE_001!

Datatab has some column like P0002-VORNA .I try to split this column into two strings then use the DDIF_FIELDINFO_GET function module to find out if the field is type date or not in order to modify it from 20181212 to 12.12.2018!

This gives the error::

The function module interface allows you to specify only fields of a particular type under "FIELDNAME". The field "STR2" specified here is a different field type .

Code is as follows::

 READ TABLE LT_COMPONENTS ASSIGNING <LS_COMP> INDEX SY-INDEX.
 "field name: <ls_comp>-name.
 CLEAR STR4.
 STR4 = <LS_COMP>-NAME.

 IF STR4 CS '-'.
 SPLIT STR4 AT '-' INTO: STR1 STR2 .

 CALL FUNCTION 'DDIF_FIELDINFO_GET'
 EXPORTING
 TABNAME = DATATAB
 FIELDNAME = STR2
 LANGU = SY-LANGU
 IMPORTING
 DDOBJTYPE = STR3
 EXCEPTIONS
 NOT_FOUND = 1
 INTERNAL_ERROR = 2
 OTHERS = 3.

[jascha_kanngiesser]

How is STR2 declared?

[former_member2492]

type string.

[jascha_kanngiesser]

You need to declare it using type FIELDNAME, check the definition of IMPORTING parameter FIELDNAME of function module DDIF_FIELDINFO_GET:

*"     VALUE(FIELDNAME) TYPE  DFIES-FIELDNAME DEFAULT ' '

Or change your code as follows:

 CALL FUNCTION 'DDIF_FIELDINFO_GET'
 EXPORTING
 TABNAME = DATATAB
 FIELDNAME = CONV FIELDNAME( STR2 )
 LANGU = SY-LANGU
 IMPORTING
 DDOBJTYPE = STR3
 EXCEPTIONS
 NOT_FOUND = 1
 INTERNAL_ERROR = 2
 OTHERS = 3.

[former_member2492]

The function module interface allows you to specify only fields of a particular type under "TABNAME". The field "DATATAB" specified here is a different field type .

[former_member2492]

IDK why datatab is not recognized as a table,even if I replace the datatab with str1 it still dumps.

[jascha_kanngiesser]

Same story I assume, in case you declared TABNAME as STRING, too. Either declare it as DDOBJNAME, or replace

TABNAME = DATATAB

with

TABNAME = CONV DDOBJNAME( DATATAB )

[former_member2492]

can you please also help me with str3.but thanks you have been a great help.I have declared it type DDEUTYPE but not working