ABAP Select data from SAP table WBDRSCALE into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WBDRSCALE 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 WBDRSCALE. 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 WBDRSCALE 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_WBDRSCALE TYPE STANDARD TABLE OF WBDRSCALE,
      WA_WBDRSCALE TYPE WBDRSCALE,
      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: <WBDRSCALE> TYPE WBDRSCALE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WBDRSCALE
*  INTO TABLE @DATA(IT_WBDRSCALE2).
*--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_WBDRSCALE INDEX 1 INTO DATA(WA_WBDRSCALE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WBDRSCALE>-KLFN1 = 1.
<WBDRSCALE>-KBETR = 1.
<WBDRSCALE>-KOEIN = 1.
<WBDRSCALE>-KOEI1 = 1.
<WBDRSCALE>-KSTBW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WBDRSCALE-KSTBWEIN, sy-vline,
  WA_WBDRSCALE-KSTBWEI1, sy-vline,
  WA_WBDRSCALE-KSTBM, sy-vline,
  WA_WBDRSCALE-KSTBMEIN, sy-vline,
  WA_WBDRSCALE-KSTBMEI1, sy-vline,
  WA_WBDRSCALE-KSTBS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WBDRSCALE 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_WBDRSCALE 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_WBDRSCALE INTO WA_WBDRSCALE.


*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 CUNIT, internal->external for field KSTBMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBDRSCALE-KSTBMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBDRSCALE-KSTBMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KSTBMEI1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBDRSCALE-KSTBMEI1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBDRSCALE-KSTBMEI1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBDRSCALE-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBDRSCALE-KMEIN.
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_WBDRSCALE_STR, 
KLFN1 TYPE STRING,
KBETR TYPE STRING,
KOEIN TYPE STRING,
KOEI1 TYPE STRING,
KSTBW TYPE STRING,
KSTBWEIN TYPE STRING,
KSTBWEI1 TYPE STRING,
KSTBM TYPE STRING,
KSTBMEIN TYPE STRING,
KSTBMEI1 TYPE STRING,
KSTBS TYPE STRING,
KSTBSEIN TYPE STRING,
KSTBSEI1 TYPE STRING,
KAWRT TYPE STRING,
AWEIN TYPE STRING,
AWEI1 TYPE STRING,
KWERT TYPE STRING,
KWERTEIN TYPE STRING,
KWERTEI1 TYPE STRING,
KRECH TYPE STRING,
KZBZG TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
STFKZ_TXT TYPE STRING,
REL_TXT TYPE STRING,
AMOUNT_SCALE TYPE STRING,
XGRADSCALE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WBDRSCALE_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_WBDRSCALE_STR-KLFN1 sy-vline 
WA_WBDRSCALE_STR-KBETR sy-vline 
WA_WBDRSCALE_STR-KOEIN sy-vline 
WA_WBDRSCALE_STR-KOEI1 sy-vline 
WA_WBDRSCALE_STR-KSTBW sy-vline 
WA_WBDRSCALE_STR-KSTBWEIN sy-vline 
WA_WBDRSCALE_STR-KSTBWEI1 sy-vline 
WA_WBDRSCALE_STR-KSTBM sy-vline 
WA_WBDRSCALE_STR-KSTBMEIN sy-vline 
WA_WBDRSCALE_STR-KSTBMEI1 sy-vline 
WA_WBDRSCALE_STR-KSTBS sy-vline 
WA_WBDRSCALE_STR-KSTBSEIN sy-vline 
WA_WBDRSCALE_STR-KSTBSEI1 sy-vline 
WA_WBDRSCALE_STR-KAWRT sy-vline 
WA_WBDRSCALE_STR-AWEIN sy-vline 
WA_WBDRSCALE_STR-AWEI1 sy-vline 
WA_WBDRSCALE_STR-KWERT sy-vline 
WA_WBDRSCALE_STR-KWERTEIN sy-vline 
WA_WBDRSCALE_STR-KWERTEI1 sy-vline 
WA_WBDRSCALE_STR-KRECH sy-vline 
WA_WBDRSCALE_STR-KZBZG sy-vline 
WA_WBDRSCALE_STR-KPEIN sy-vline 
WA_WBDRSCALE_STR-KMEIN sy-vline 
WA_WBDRSCALE_STR-STFKZ_TXT sy-vline 
WA_WBDRSCALE_STR-REL_TXT sy-vline 
WA_WBDRSCALE_STR-AMOUNT_SCALE sy-vline 
WA_WBDRSCALE_STR-XGRADSCALE sy-vline      INTO ld_text SEPARATED BY SPACE.

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