ABAP Select data from SAP table WLF_TXW_WBRP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WLF_TXW_WBRP
*  INTO TABLE @DATA(IT_WLF_TXW_WBRP2).
*--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_WLF_TXW_WBRP INDEX 1 INTO DATA(WA_WLF_TXW_WBRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WLF_TXW_WBRP>-MANDT = 1.
<WLF_TXW_WBRP>-BUKRS = 1.
<WLF_TXW_WBRP>-BELNR = 1.
<WLF_TXW_WBRP>-GJAHR = 1.
<WLF_TXW_WBRP>-MONAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WLF_TXW_WBRP-WBELN, sy-vline,
  WA_WLF_TXW_WBRP-POSNR, sy-vline,
  WA_WLF_TXW_WBRP-MATNR, sy-vline,
  WA_WLF_TXW_WBRP-MATKL, sy-vline,
  WA_WLF_TXW_WBRP-WERKS, sy-vline,
  WA_WLF_TXW_WBRP-MWSKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WLF_TXW_WBRP 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_WLF_TXW_WBRP 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_WLF_TXW_WBRP INTO WA_WLF_TXW_WBRP.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_WLF_TXW_WBRP-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLF_TXW_WBRP-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WLF_TXW_WBRP-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLF_TXW_WBRP-AUFNR.
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_WLF_TXW_WBRP_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
MONAT TYPE STRING,
WBELN TYPE STRING,
POSNR TYPE STRING,
MATNR TYPE STRING,
MATKL TYPE STRING,
WERKS TYPE STRING,
MWSKZ TYPE STRING,
MWSK2 TYPE STRING,
PRSDT TYPE STRING,
MENGE TYPE STRING,
NETPR TYPE STRING,
WFKME TYPE STRING,
PEINH TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
FPRME TYPE STRING,
FPUMZ TYPE STRING,
FPUMN TYPE STRING,
MEINS TYPE STRING,
MTART TYPE STRING,
NETWR TYPE STRING,
BRTWR TYPE STRING,
KZWI1 TYPE STRING,
KZWI2 TYPE STRING,
KZWI3 TYPE STRING,
KZWI4 TYPE STRING,
KZWI5 TYPE STRING,
KZWI6 TYPE STRING,
BONBA TYPE STRING,
EFFWR TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
KOWRR TYPE STRING,
SKTOF TYPE STRING,
SKFBP TYPE STRING,
NETWRD TYPE STRING,
BRTWRD TYPE STRING,
KZWI1D TYPE STRING,
KZWI2D TYPE STRING,
KZWI3D TYPE STRING,
KZWI4D TYPE STRING,
KZWI5D TYPE STRING,
KZWI6D TYPE STRING,
BONBAD TYPE STRING,
SKFBPD TYPE STRING,
EFFWRD TYPE STRING,
MWSBPD TYPE STRING,
LFGRU TYPE STRING,
MWSBP TYPE STRING,
EBONF TYPE STRING,
EKKOL TYPE STRING,
KOSTL TYPE STRING,
PRCTR TYPE STRING,
KOKRS TYPE STRING,
WBELN_V TYPE STRING,
POSNR_V TYPE STRING,
FTYPV_V TYPE STRING,
ITEMCAT TYPE STRING,
ITEM_CANCELED TYPE STRING,
AUFNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WLF_TXW_WBRP_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_WLF_TXW_WBRP_STR-MANDT sy-vline 
WA_WLF_TXW_WBRP_STR-BUKRS sy-vline 
WA_WLF_TXW_WBRP_STR-BELNR sy-vline 
WA_WLF_TXW_WBRP_STR-GJAHR sy-vline 
WA_WLF_TXW_WBRP_STR-MONAT sy-vline 
WA_WLF_TXW_WBRP_STR-WBELN sy-vline 
WA_WLF_TXW_WBRP_STR-POSNR sy-vline 
WA_WLF_TXW_WBRP_STR-MATNR sy-vline 
WA_WLF_TXW_WBRP_STR-MATKL sy-vline 
WA_WLF_TXW_WBRP_STR-WERKS sy-vline 
WA_WLF_TXW_WBRP_STR-MWSKZ sy-vline 
WA_WLF_TXW_WBRP_STR-MWSK2 sy-vline 
WA_WLF_TXW_WBRP_STR-PRSDT sy-vline 
WA_WLF_TXW_WBRP_STR-MENGE sy-vline 
WA_WLF_TXW_WBRP_STR-NETPR sy-vline 
WA_WLF_TXW_WBRP_STR-WFKME sy-vline 
WA_WLF_TXW_WBRP_STR-PEINH sy-vline 
WA_WLF_TXW_WBRP_STR-UMREZ sy-vline 
WA_WLF_TXW_WBRP_STR-UMREN sy-vline 
WA_WLF_TXW_WBRP_STR-FPRME sy-vline 
WA_WLF_TXW_WBRP_STR-FPUMZ sy-vline 
WA_WLF_TXW_WBRP_STR-FPUMN sy-vline 
WA_WLF_TXW_WBRP_STR-MEINS sy-vline 
WA_WLF_TXW_WBRP_STR-MTART sy-vline 
WA_WLF_TXW_WBRP_STR-NETWR sy-vline 
WA_WLF_TXW_WBRP_STR-BRTWR sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI1 sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI2 sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI3 sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI4 sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI5 sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI6 sy-vline 
WA_WLF_TXW_WBRP_STR-BONBA sy-vline 
WA_WLF_TXW_WBRP_STR-EFFWR sy-vline 
WA_WLF_TXW_WBRP_STR-ERNAM sy-vline 
WA_WLF_TXW_WBRP_STR-ERDAT sy-vline 
WA_WLF_TXW_WBRP_STR-ERZET sy-vline 
WA_WLF_TXW_WBRP_STR-KOWRR sy-vline 
WA_WLF_TXW_WBRP_STR-SKTOF sy-vline 
WA_WLF_TXW_WBRP_STR-SKFBP sy-vline 
WA_WLF_TXW_WBRP_STR-NETWRD sy-vline 
WA_WLF_TXW_WBRP_STR-BRTWRD sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI1D sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI2D sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI3D sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI4D sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI5D sy-vline 
WA_WLF_TXW_WBRP_STR-KZWI6D sy-vline 
WA_WLF_TXW_WBRP_STR-BONBAD sy-vline 
WA_WLF_TXW_WBRP_STR-SKFBPD sy-vline 
WA_WLF_TXW_WBRP_STR-EFFWRD sy-vline 
WA_WLF_TXW_WBRP_STR-MWSBPD sy-vline 
WA_WLF_TXW_WBRP_STR-LFGRU sy-vline 
WA_WLF_TXW_WBRP_STR-MWSBP sy-vline 
WA_WLF_TXW_WBRP_STR-EBONF sy-vline 
WA_WLF_TXW_WBRP_STR-EKKOL sy-vline 
WA_WLF_TXW_WBRP_STR-KOSTL sy-vline 
WA_WLF_TXW_WBRP_STR-PRCTR sy-vline 
WA_WLF_TXW_WBRP_STR-KOKRS sy-vline 
WA_WLF_TXW_WBRP_STR-WBELN_V sy-vline 
WA_WLF_TXW_WBRP_STR-POSNR_V sy-vline 
WA_WLF_TXW_WBRP_STR-FTYPV_V sy-vline 
WA_WLF_TXW_WBRP_STR-ITEMCAT sy-vline 
WA_WLF_TXW_WBRP_STR-ITEM_CANCELED sy-vline 
WA_WLF_TXW_WBRP_STR-AUFNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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