ABAP Select data from SAP table BELA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BELA
*  INTO TABLE @DATA(IT_BELA2).
*--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_BELA INDEX 1 INTO DATA(WA_BELA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BELA>-LEDNR = 1.
<BELA>-AFABE = 1.
<BELA>-BUREG = 1.
<BELA>-ABZUO = 1.
<BELA>-URZUO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BELA-ERZUO, sy-vline,
  WA_BELA-TWAER, sy-vline,
  WA_BELA-MEINH, sy-vline,
  WA_BELA-BWASL, sy-vline,
  WA_BELA-ABWST, sy-vline,
  WA_BELA-FLGVOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BELA 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_BELA 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_BELA INTO WA_BELA.


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

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

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

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

*Conversion exit AC152, internal->external for field WTGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WTGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WTGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WKGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WKGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKFBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WKFBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WKFBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WOGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WOGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PAGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-PAGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-PAGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PAFBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-PAFBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-PAFBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WAGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WAGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WAGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WVGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WVGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WVGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WBGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WBGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WBGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WCGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WCGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WCGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WDGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WDGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WDGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WEGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WEGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WEGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WFGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WFGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WFGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WGGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WGGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WGGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WHGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WHGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WHGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WSGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WSGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WSGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WTGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WTGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WTGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WKGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WKGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKFPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WKFPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WKFPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WOGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WOGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PAGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-PAGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-PAGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PAFPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-PAFPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-PAFPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WAGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WAGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WAGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WVGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WVGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WVGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WBGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WBGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WBGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WCGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WCGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WCGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WDGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WDGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WDGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WEGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WEGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WEGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WFGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WFGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WFGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WGGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WGGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WGGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WHGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WHGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WHGPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WSGPER
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_BELA-WSGPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BELA-WSGPER.
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_BELA_STR, 
LEDNR TYPE STRING,
AFABE TYPE STRING,
BUREG TYPE STRING,
ABZUO TYPE STRING,
URZUO TYPE STRING,
ERZUO TYPE STRING,
TWAER TYPE STRING,
MEINH TYPE STRING,
BWASL TYPE STRING,
ABWST TYPE STRING,
FLGVOR TYPE STRING,
FLGABG TYPE STRING,
WTGBTR TYPE STRING,
WKGBTR TYPE STRING,
WKFBTR TYPE STRING,
WOGBTR TYPE STRING,
PAGBTR TYPE STRING,
PAFBTR TYPE STRING,
MEGBTR TYPE STRING,
MEFBTR TYPE STRING,
WAGBTR TYPE STRING,
WVGBTR TYPE STRING,
WBGBTR TYPE STRING,
WCGBTR TYPE STRING,
WDGBTR TYPE STRING,
WEGBTR TYPE STRING,
WFGBTR TYPE STRING,
WGGBTR TYPE STRING,
WHGBTR TYPE STRING,
WSGBTR TYPE STRING,
WTGPER TYPE STRING,
WKGPER TYPE STRING,
WKFPER TYPE STRING,
WOGPER TYPE STRING,
PAGPER TYPE STRING,
PAFPER TYPE STRING,
MEGPER TYPE STRING,
MEFPER TYPE STRING,
WAGPER TYPE STRING,
WVGPER TYPE STRING,
WBGPER TYPE STRING,
WCGPER TYPE STRING,
WDGPER TYPE STRING,
WEGPER TYPE STRING,
WFGPER TYPE STRING,
WGGPER TYPE STRING,
WHGPER TYPE STRING,
WSGPER TYPE STRING,
DATEI TYPE STRING,
KEY01 TYPE STRING,
MUVBTR TYPE STRING,
MUVPER TYPE STRING,
BELTP TYPE STRING,
DDATEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BELA_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_BELA_STR-LEDNR sy-vline 
WA_BELA_STR-AFABE sy-vline 
WA_BELA_STR-BUREG sy-vline 
WA_BELA_STR-ABZUO sy-vline 
WA_BELA_STR-URZUO sy-vline 
WA_BELA_STR-ERZUO sy-vline 
WA_BELA_STR-TWAER sy-vline 
WA_BELA_STR-MEINH sy-vline 
WA_BELA_STR-BWASL sy-vline 
WA_BELA_STR-ABWST sy-vline 
WA_BELA_STR-FLGVOR sy-vline 
WA_BELA_STR-FLGABG sy-vline 
WA_BELA_STR-WTGBTR sy-vline 
WA_BELA_STR-WKGBTR sy-vline 
WA_BELA_STR-WKFBTR sy-vline 
WA_BELA_STR-WOGBTR sy-vline 
WA_BELA_STR-PAGBTR sy-vline 
WA_BELA_STR-PAFBTR sy-vline 
WA_BELA_STR-MEGBTR sy-vline 
WA_BELA_STR-MEFBTR sy-vline 
WA_BELA_STR-WAGBTR sy-vline 
WA_BELA_STR-WVGBTR sy-vline 
WA_BELA_STR-WBGBTR sy-vline 
WA_BELA_STR-WCGBTR sy-vline 
WA_BELA_STR-WDGBTR sy-vline 
WA_BELA_STR-WEGBTR sy-vline 
WA_BELA_STR-WFGBTR sy-vline 
WA_BELA_STR-WGGBTR sy-vline 
WA_BELA_STR-WHGBTR sy-vline 
WA_BELA_STR-WSGBTR sy-vline 
WA_BELA_STR-WTGPER sy-vline 
WA_BELA_STR-WKGPER sy-vline 
WA_BELA_STR-WKFPER sy-vline 
WA_BELA_STR-WOGPER sy-vline 
WA_BELA_STR-PAGPER sy-vline 
WA_BELA_STR-PAFPER sy-vline 
WA_BELA_STR-MEGPER sy-vline 
WA_BELA_STR-MEFPER sy-vline 
WA_BELA_STR-WAGPER sy-vline 
WA_BELA_STR-WVGPER sy-vline 
WA_BELA_STR-WBGPER sy-vline 
WA_BELA_STR-WCGPER sy-vline 
WA_BELA_STR-WDGPER sy-vline 
WA_BELA_STR-WEGPER sy-vline 
WA_BELA_STR-WFGPER sy-vline 
WA_BELA_STR-WGGPER sy-vline 
WA_BELA_STR-WHGPER sy-vline 
WA_BELA_STR-WSGPER sy-vline 
WA_BELA_STR-DATEI sy-vline 
WA_BELA_STR-KEY01 sy-vline 
WA_BELA_STR-MUVBTR sy-vline 
WA_BELA_STR-MUVPER sy-vline 
WA_BELA_STR-BELTP sy-vline 
WA_BELA_STR-DDATEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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