ABAP Select data from SAP table WRPL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WRPL 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 WRPL. 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 WRPL 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_WRPL TYPE STANDARD TABLE OF WRPL,
      WA_WRPL TYPE WRPL,
      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: <WRPL> TYPE WRPL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRPL
*  INTO TABLE @DATA(IT_WRPL2).
*--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_WRPL INDEX 1 INTO DATA(WA_WRPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRPL>-MANDT = 1.
<WRPL>-KUNNR = 1.
<WRPL>-MATNR = 1.
<WRPL>-STOCK = 1.
<WRPL>-SOBST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRPL-MABST, sy-vline,
  WA_WRPL-MINBE, sy-vline,
  WA_WRPL-EISBE, sy-vline,
  WA_WRPL-MEINS, sy-vline,
  WA_WRPL-PERAN, sy-vline,
  WA_WRPL-ANZPR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRPL 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_WRPL 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_WRPL INTO WA_WRPL.


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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WRPL-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRPL-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field SRP_HEAD
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WRPL-SRP_HEAD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRPL-SRP_HEAD.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field SRP_SCHME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRPL-SRP_SCHME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRPL-SRP_SCHME.
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_WRPL_STR, 
MANDT TYPE STRING,
KUNNR TYPE STRING,
MATNR TYPE STRING,
STOCK TYPE STRING,
SOBST TYPE STRING,
MABST TYPE STRING,
MINBE TYPE STRING,
EISBE TYPE STRING,
MEINS TYPE STRING,
PERAN TYPE STRING,
ANZPR TYPE STRING,
PRMOD TYPE STRING,
CHNGE TYPE STRING,
EXFLG TYPE STRING,
NIMGT TYPE STRING,
NGRCT TYPE STRING,
DISMM TYPE STRING,
PRWUG TYPE STRING,
PRWOG TYPE STRING,
TRCOV TYPE STRING,
SRP_MATKL TYPE STRING,
SRP_BFLME TYPE STRING,
SRP_PLIFZ TYPE STRING,
SRP_WEBAZ TYPE STRING,
SRP_LFRHY TYPE STRING,
SRP_PERKZ TYPE STRING,
SRP_PERIV TYPE STRING,
SRP_WERKS TYPE STRING,
SRP_RESWK TYPE STRING,
SRP_LIFNR TYPE STRING,
SRP_MDREL TYPE STRING,
SRP_EKORG TYPE STRING,
SRP_WBTYP TYPE STRING,
SRP_ATPFLG TYPE STRING,
SRP_RLTFLG TYPE STRING,
SRP_DYNTS TYPE STRING,
SRP_BZTEK TYPE STRING,
SRP_MENGU TYPE STRING,
SRP_HEAD TYPE STRING,
SRP_IMFLG TYPE STRING,
SRP_WBZFLG TYPE STRING,
SRP_VKORG TYPE STRING,
SRP_VTWEG TYPE STRING,
SRP_SPART TYPE STRING,
SRP_INFLS TYPE STRING,
SRP_DEFQTUNIT TYPE STRING,
SRP_VENUNITGR TYPE STRING,
SRP_BUYUNITGR TYPE STRING,
SRP_RDPRF TYPE STRING,
SRP_MAXQT TYPE STRING,
SRP_MINQT TYPE STRING,
SRP_MAMIQTUNIT TYPE STRING,
SRP_VABME TYPE STRING,
SRP_BSTRF TYPE STRING,
SRP_VAVME TYPE STRING,
SRP_SCMNG TYPE STRING,
SRP_SCHME TYPE STRING,
SRP_PSTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRPL_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_WRPL_STR-MANDT sy-vline 
WA_WRPL_STR-KUNNR sy-vline 
WA_WRPL_STR-MATNR sy-vline 
WA_WRPL_STR-STOCK sy-vline 
WA_WRPL_STR-SOBST sy-vline 
WA_WRPL_STR-MABST sy-vline 
WA_WRPL_STR-MINBE sy-vline 
WA_WRPL_STR-EISBE sy-vline 
WA_WRPL_STR-MEINS sy-vline 
WA_WRPL_STR-PERAN sy-vline 
WA_WRPL_STR-ANZPR sy-vline 
WA_WRPL_STR-PRMOD sy-vline 
WA_WRPL_STR-CHNGE sy-vline 
WA_WRPL_STR-EXFLG sy-vline 
WA_WRPL_STR-NIMGT sy-vline 
WA_WRPL_STR-NGRCT sy-vline 
WA_WRPL_STR-DISMM sy-vline 
WA_WRPL_STR-PRWUG sy-vline 
WA_WRPL_STR-PRWOG sy-vline 
WA_WRPL_STR-TRCOV sy-vline 
WA_WRPL_STR-SRP_MATKL sy-vline 
WA_WRPL_STR-SRP_BFLME sy-vline 
WA_WRPL_STR-SRP_PLIFZ sy-vline 
WA_WRPL_STR-SRP_WEBAZ sy-vline 
WA_WRPL_STR-SRP_LFRHY sy-vline 
WA_WRPL_STR-SRP_PERKZ sy-vline 
WA_WRPL_STR-SRP_PERIV sy-vline 
WA_WRPL_STR-SRP_WERKS sy-vline 
WA_WRPL_STR-SRP_RESWK sy-vline 
WA_WRPL_STR-SRP_LIFNR sy-vline 
WA_WRPL_STR-SRP_MDREL sy-vline 
WA_WRPL_STR-SRP_EKORG sy-vline 
WA_WRPL_STR-SRP_WBTYP sy-vline 
WA_WRPL_STR-SRP_ATPFLG sy-vline 
WA_WRPL_STR-SRP_RLTFLG sy-vline 
WA_WRPL_STR-SRP_DYNTS sy-vline 
WA_WRPL_STR-SRP_BZTEK sy-vline 
WA_WRPL_STR-SRP_MENGU sy-vline 
WA_WRPL_STR-SRP_HEAD sy-vline 
WA_WRPL_STR-SRP_IMFLG sy-vline 
WA_WRPL_STR-SRP_WBZFLG sy-vline 
WA_WRPL_STR-SRP_VKORG sy-vline 
WA_WRPL_STR-SRP_VTWEG sy-vline 
WA_WRPL_STR-SRP_SPART sy-vline 
WA_WRPL_STR-SRP_INFLS sy-vline 
WA_WRPL_STR-SRP_DEFQTUNIT sy-vline 
WA_WRPL_STR-SRP_VENUNITGR sy-vline 
WA_WRPL_STR-SRP_BUYUNITGR sy-vline 
WA_WRPL_STR-SRP_RDPRF sy-vline 
WA_WRPL_STR-SRP_MAXQT sy-vline 
WA_WRPL_STR-SRP_MINQT sy-vline 
WA_WRPL_STR-SRP_MAMIQTUNIT sy-vline 
WA_WRPL_STR-SRP_VABME sy-vline 
WA_WRPL_STR-SRP_BSTRF sy-vline 
WA_WRPL_STR-SRP_VAVME sy-vline 
WA_WRPL_STR-SRP_SCMNG sy-vline 
WA_WRPL_STR-SRP_SCHME sy-vline 
WA_WRPL_STR-SRP_PSTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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