ABAP Select data from SAP table REGUP_LST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REGUP_LST
*  INTO TABLE @DATA(IT_REGUP_LST2).
*--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_REGUP_LST INDEX 1 INTO DATA(WA_REGUP_LST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REGUP_LST>-ZBUKR = 1.
<REGUP_LST>-LIFNR = 1.
<REGUP_LST>-KUNNR = 1.
<REGUP_LST>-EMPFG = 1.
<REGUP_LST>-VBLNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REGUP_LST-BUKRS, sy-vline,
  WA_REGUP_LST-BELNR, sy-vline,
  WA_REGUP_LST-GJAHR, sy-vline,
  WA_REGUP_LST-BUZEI, sy-vline,
  WA_REGUP_LST-ZLSCH, sy-vline,
  WA_REGUP_LST-WAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REGUP_LST 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_REGUP_LST 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_REGUP_LST INTO WA_REGUP_LST.


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

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

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

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

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

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

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

*Conversion exit AC132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SKNTO
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-SKNTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-SKNTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WSKTO
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-WSKTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-WSKTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKVHW
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-SKVHW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-SKVHW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKVFW
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-SKVFW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-SKVFW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field QSTEU
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-QSTEU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-QSTEU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WQSTE
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-WQSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-WQSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ABZUG
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-ABZUG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-ABZUG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WABZG
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-WABZG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-WABZG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NETTO
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-NETTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-NETTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WNETT
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-WNETT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-WNETT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKFBT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_REGUP_LST-SKFBT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REGUP_LST-SKFBT.
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_REGUP_LST_STR, 
ZBUKR TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
EMPFG TYPE STRING,
VBLNR TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
ZLSCH TYPE STRING,
WAERS TYPE STRING,
POKEN TYPE STRING,
SRID TYPE STRING,
XCLOSED TYPE STRING,
ZLSPR TYPE STRING,
XBLNR TYPE STRING,
KIDNO TYPE STRING,
VERTN TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
BLART TYPE STRING,
BSCHL TYPE STRING,
BSCHX TYPE STRING,
GSBER TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
SKNTO TYPE STRING,
WSKTO TYPE STRING,
SKVHW TYPE STRING,
SKVFW TYPE STRING,
QSTEU TYPE STRING,
WQSTE TYPE STRING,
ABZUG TYPE STRING,
WABZG TYPE STRING,
NETTO TYPE STRING,
WNETT TYPE STRING,
SGTXT TYPE STRING,
ZFBDT TYPE STRING,
ZTERM TYPE STRING,
ZBD1T TYPE STRING,
ZBD2T TYPE STRING,
ZBD3T TYPE STRING,
ZBD1P TYPE STRING,
ZBD2P TYPE STRING,
SKFBT TYPE STRING,
ZBDXT TYPE STRING,
ZBDXP TYPE STRING,
LZBKZ TYPE STRING,
LANDL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REGUP_LST_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_REGUP_LST_STR-ZBUKR sy-vline 
WA_REGUP_LST_STR-LIFNR sy-vline 
WA_REGUP_LST_STR-KUNNR sy-vline 
WA_REGUP_LST_STR-EMPFG sy-vline 
WA_REGUP_LST_STR-VBLNR sy-vline 
WA_REGUP_LST_STR-BUKRS sy-vline 
WA_REGUP_LST_STR-BELNR sy-vline 
WA_REGUP_LST_STR-GJAHR sy-vline 
WA_REGUP_LST_STR-BUZEI sy-vline 
WA_REGUP_LST_STR-ZLSCH sy-vline 
WA_REGUP_LST_STR-WAERS sy-vline 
WA_REGUP_LST_STR-POKEN sy-vline 
WA_REGUP_LST_STR-SRID sy-vline 
WA_REGUP_LST_STR-XCLOSED sy-vline 
WA_REGUP_LST_STR-ZLSPR sy-vline 
WA_REGUP_LST_STR-XBLNR sy-vline 
WA_REGUP_LST_STR-KIDNO sy-vline 
WA_REGUP_LST_STR-VERTN sy-vline 
WA_REGUP_LST_STR-BUDAT sy-vline 
WA_REGUP_LST_STR-BLDAT sy-vline 
WA_REGUP_LST_STR-BLART sy-vline 
WA_REGUP_LST_STR-BSCHL sy-vline 
WA_REGUP_LST_STR-BSCHX sy-vline 
WA_REGUP_LST_STR-GSBER sy-vline 
WA_REGUP_LST_STR-DMBTR sy-vline 
WA_REGUP_LST_STR-WRBTR sy-vline 
WA_REGUP_LST_STR-SKNTO sy-vline 
WA_REGUP_LST_STR-WSKTO sy-vline 
WA_REGUP_LST_STR-SKVHW sy-vline 
WA_REGUP_LST_STR-SKVFW sy-vline 
WA_REGUP_LST_STR-QSTEU sy-vline 
WA_REGUP_LST_STR-WQSTE sy-vline 
WA_REGUP_LST_STR-ABZUG sy-vline 
WA_REGUP_LST_STR-WABZG sy-vline 
WA_REGUP_LST_STR-NETTO sy-vline 
WA_REGUP_LST_STR-WNETT sy-vline 
WA_REGUP_LST_STR-SGTXT sy-vline 
WA_REGUP_LST_STR-ZFBDT sy-vline 
WA_REGUP_LST_STR-ZTERM sy-vline 
WA_REGUP_LST_STR-ZBD1T sy-vline 
WA_REGUP_LST_STR-ZBD2T sy-vline 
WA_REGUP_LST_STR-ZBD3T sy-vline 
WA_REGUP_LST_STR-ZBD1P sy-vline 
WA_REGUP_LST_STR-ZBD2P sy-vline 
WA_REGUP_LST_STR-SKFBT sy-vline 
WA_REGUP_LST_STR-ZBDXT sy-vline 
WA_REGUP_LST_STR-ZBDXP sy-vline 
WA_REGUP_LST_STR-LZBKZ sy-vline 
WA_REGUP_LST_STR-LANDL sy-vline      INTO ld_text SEPARATED BY SPACE.

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