Get Table-Fields attributes at runtime

[Former Member]

Hi all you experts!

I need to create a program that get some Table-Fields name from an input file and then compare them with SAP Data Dictionary.

For instance, program reads from the input file "MARA-MARC" then what program have to do is to get the attributes of "MARA-MARC" such as data type (C, N, D, etc.) and length (18 for MARC).

How can I get those attributes giving the TABLE-FIELD name at runtime? Is there any function module to do so? Many thanks in advance for your help.

[Former Member]

Hi Ricardo,

search for RTTS Run Time Type Services with classes CL_ABAP_TYPEDESCR, ..STRUCTDESCR,..

Regards,

Clemens

[Former Member]

DDIF_FIELDINFO_GET

[Clemenss]

Hi Ricardo,

search for RTTS Run Time Type Services with classes CL_ABAP_TYPEDESCR, ..STRUCTDESCR,..

Regards,

Clemens

[Former Member]

Hi Ricardo,

A conventional technique getting the required fields, attributes etc. for a given table is using the transparent table DD03L.

Have success,

Heinz

[venkat_o]

Hi Ricardo, <li>If you want to know single field properties, DESCRIBE statement needs to be used. <li>If you want to know multiple fields properties, use DDIF_FIELDINFO_GET as suggested by Srinivas above

  REPORT ztest_notepad.
  TABLES:mara.
  DATA:typ TYPE string.
  DATA:len TYPE i.
  DESCRIBE FIELD  mara-matnr
           TYPE   typ
           LENGTH len IN CHARACTER MODE.

  WRITE:/ typ, len.

   DATA:it_table_info TYPE TABLE OF dfies.
  DATA:wa_table_info LIKE LINE OF it_table_info.
  CALL FUNCTION 'DDIF_FIELDINFO_GET'
    EXPORTING
      tabname   = 'MARA'
    TABLES
      dfies_tab = it_table_info.
  LOOP AT it_table_info INTO wa_table_info.
    WRITE:/ wa_table_info.
  ENDLOOP. 

Thanks Venkat.O