ABAP Select data from SAP table FILTERDEF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FILTERDEF table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to FILTERDEF. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the FILTERDEF table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_FILTERDEF TYPE STANDARD TABLE OF FILTERDEF,
      WA_FILTERDEF TYPE FILTERDEF,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <FILTERDEF> TYPE FILTERDEF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FILTERDEF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FILTERDEF
  INTO TABLE IT_FILTERDEF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FILTERDEF
*  INTO TABLE @DATA(IT_FILTERDEF2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_FILTERDEF INDEX 1 INTO DATA(WA_FILTERDEF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FILTERDEF ASSIGNING <FILTERDEF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FILTERDEF>-MANDT = 1.
<FILTERDEF>-FILTERNAME = 1.
<FILTERDEF>-RFCDEST = 1.
<FILTERDEF>-LOGOBJTYPE = 1.
<FILTERDEF>-COUNTER = 1.

ENDLOOP.

LOOP AT IT_FILTERDEF INTO WA_FILTERDEF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FILTERDEF-LOGSYS, sy-vline,
  WA_FILTERDEF-OBJECT_TYPE, sy-vline,
  WA_FILTERDEF-RELATION, sy-vline,
  WA_FILTERDEF-DOCUMENTTYPE, sy-vline,
  WA_FILTERDEF-DOCUMENTSTATUS, sy-vline,
  WA_FILTERDEF-LANGUSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FILTERDEF you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_FILTERDEF TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_FILTERDEF INTO WA_FILTERDEF.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FILTERDEF-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FILTERDEF-LOGSYS.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FILTERDEF_STR, 
MANDT TYPE STRING,
FILTERNAME TYPE STRING,
RFCDEST TYPE STRING,
LOGOBJTYPE TYPE STRING,
COUNTER TYPE STRING,
LOGSYS TYPE STRING,
OBJECT_TYPE TYPE STRING,
RELATION TYPE STRING,
DOCUMENTTYPE TYPE STRING,
DOCUMENTSTATUS TYPE STRING,
LANGUSTATUS TYPE STRING,
DOCUMENTOBJECT TYPE STRING,
LABORATORY TYPE STRING,
MATERIALTYPE TYPE STRING,
CLASSTYPE TYPE STRING,
PLANT TYPE STRING,
BOM_USAGE TYPE STRING,
CHECK_PROGRAM TYPE STRING,
CHECK_FORM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FILTERDEF_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_FILTERDEF_STR-MANDT sy-vline 
WA_FILTERDEF_STR-FILTERNAME sy-vline 
WA_FILTERDEF_STR-RFCDEST sy-vline 
WA_FILTERDEF_STR-LOGOBJTYPE sy-vline 
WA_FILTERDEF_STR-COUNTER sy-vline 
WA_FILTERDEF_STR-LOGSYS sy-vline 
WA_FILTERDEF_STR-OBJECT_TYPE sy-vline 
WA_FILTERDEF_STR-RELATION sy-vline 
WA_FILTERDEF_STR-DOCUMENTTYPE sy-vline 
WA_FILTERDEF_STR-DOCUMENTSTATUS sy-vline 
WA_FILTERDEF_STR-LANGUSTATUS sy-vline 
WA_FILTERDEF_STR-DOCUMENTOBJECT sy-vline 
WA_FILTERDEF_STR-LABORATORY sy-vline 
WA_FILTERDEF_STR-MATERIALTYPE sy-vline 
WA_FILTERDEF_STR-CLASSTYPE sy-vline 
WA_FILTERDEF_STR-PLANT sy-vline 
WA_FILTERDEF_STR-BOM_USAGE sy-vline 
WA_FILTERDEF_STR-CHECK_PROGRAM sy-vline 
WA_FILTERDEF_STR-CHECK_FORM sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.