ABAP Select data from SAP table WBDRP 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 WBDRP 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 WBDRP. 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 WBDRP 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_WBDRP TYPE STANDARD TABLE OF WBDRP,
      WA_WBDRP TYPE WBDRP,
      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: <WBDRP> TYPE WBDRP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WBDRP
*  INTO TABLE @DATA(IT_WBDRP2).
*--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_WBDRP INDEX 1 INTO DATA(WA_WBDRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WBDRP>-KNUMA = 1.
<WBDRP>-KNUMH = 1.
<WBDRP>-KOPOS = 1.
<WBDRP>-POSNR = 1.
<WBDRP>-LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WBDRP-KSCHL, sy-vline,
  WA_WBDRP-VTXTK, sy-vline,
  WA_WBDRP-ATYPE, sy-vline,
  WA_WBDRP-SETTLE_TYPE_TEXT, sy-vline,
  WA_WBDRP-WAERS, sy-vline,
  WA_WBDRP-KAWRT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WBDRP 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_WBDRP 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_WBDRP INTO WA_WBDRP.


*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 KNUMA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBDRP-KNUMA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBDRP-KNUMA.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field KSTBMEI1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBDRP-KSTBMEI1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBDRP-KSTBMEI1.
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_WBDRP_STR, 
KNUMA TYPE STRING,
KNUMH TYPE STRING,
KOPOS TYPE STRING,
POSNR TYPE STRING,
LIFNR TYPE STRING,
KSCHL TYPE STRING,
VTXTK TYPE STRING,
ATYPE TYPE STRING,
SETTLE_TYPE_TEXT TYPE STRING,
WAERS TYPE STRING,
KAWRT TYPE STRING,
AUWRT TYPE STRING,
AZWRT TYPE STRING,
AGWRT TYPE STRING,
KBETR TYPE STRING,
KOEIN TYPE STRING,
KOEI1 TYPE STRING,
AWEIN TYPE STRING,
AWEI1 TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
STFKZ 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,
KRECH TYPE STRING,
KZBZG TYPE STRING,
DATBI TYPE STRING,
DATAB TYPE STRING,
REL_TXT TYPE STRING,
AMOUNT_SCALE TYPE STRING,
TDNAME TYPE STRING,
DATBI1 TYPE STRING,
DATBI2 TYPE STRING,
DATBI3 TYPE STRING,
DATBI4 TYPE STRING,
BEZEICHNUNG TYPE STRING,
FELD TYPE STRING,
TEXT TYPE STRING,
ERASE_TEXT TYPE STRING,
ERASED_DATAB TYPE STRING,
ERASED_DATBI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WBDRP_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_WBDRP_STR-KNUMA sy-vline 
WA_WBDRP_STR-KNUMH sy-vline 
WA_WBDRP_STR-KOPOS sy-vline 
WA_WBDRP_STR-POSNR sy-vline 
WA_WBDRP_STR-LIFNR sy-vline 
WA_WBDRP_STR-KSCHL sy-vline 
WA_WBDRP_STR-VTXTK sy-vline 
WA_WBDRP_STR-ATYPE sy-vline 
WA_WBDRP_STR-SETTLE_TYPE_TEXT sy-vline 
WA_WBDRP_STR-WAERS sy-vline 
WA_WBDRP_STR-KAWRT sy-vline 
WA_WBDRP_STR-AUWRT sy-vline 
WA_WBDRP_STR-AZWRT sy-vline 
WA_WBDRP_STR-AGWRT sy-vline 
WA_WBDRP_STR-KBETR sy-vline 
WA_WBDRP_STR-KOEIN sy-vline 
WA_WBDRP_STR-KOEI1 sy-vline 
WA_WBDRP_STR-AWEIN sy-vline 
WA_WBDRP_STR-AWEI1 sy-vline 
WA_WBDRP_STR-KPEIN sy-vline 
WA_WBDRP_STR-KMEIN sy-vline 
WA_WBDRP_STR-STFKZ sy-vline 
WA_WBDRP_STR-KSTBW sy-vline 
WA_WBDRP_STR-KSTBWEIN sy-vline 
WA_WBDRP_STR-KSTBWEI1 sy-vline 
WA_WBDRP_STR-KSTBM sy-vline 
WA_WBDRP_STR-KSTBMEIN sy-vline 
WA_WBDRP_STR-KSTBMEI1 sy-vline 
WA_WBDRP_STR-KSTBS sy-vline 
WA_WBDRP_STR-KSTBSEIN sy-vline 
WA_WBDRP_STR-KSTBSEI1 sy-vline 
WA_WBDRP_STR-KRECH sy-vline 
WA_WBDRP_STR-KZBZG sy-vline 
WA_WBDRP_STR-DATBI sy-vline 
WA_WBDRP_STR-DATAB sy-vline 
WA_WBDRP_STR-REL_TXT sy-vline 
WA_WBDRP_STR-AMOUNT_SCALE sy-vline 
WA_WBDRP_STR-TDNAME sy-vline 
WA_WBDRP_STR-DATBI1 sy-vline 
WA_WBDRP_STR-DATBI2 sy-vline 
WA_WBDRP_STR-DATBI3 sy-vline 
WA_WBDRP_STR-DATBI4 sy-vline 
WA_WBDRP_STR-BEZEICHNUNG sy-vline 
WA_WBDRP_STR-FELD sy-vline 
WA_WBDRP_STR-TEXT sy-vline 
WA_WBDRP_STR-ERASE_TEXT sy-vline 
WA_WBDRP_STR-ERASED_DATAB sy-vline 
WA_WBDRP_STR-ERASED_DATBI sy-vline      INTO ld_text SEPARATED BY SPACE.

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