ABAP Select data from SAP table /BEV2/ED_BELTAB_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BEV2/ED_BELTAB_S 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 /BEV2/ED_BELTAB_S. 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 /BEV2/ED_BELTAB_S 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_/BEV2/ED_BELTAB_S TYPE STANDARD TABLE OF /BEV2/ED_BELTAB_S,
      WA_/BEV2/ED_BELTAB_S TYPE /BEV2/ED_BELTAB_S,
      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: </BEV2/ED_BELTAB_S> TYPE /BEV2/ED_BELTAB_S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BEV2/ED_BELTAB_S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BEV2/ED_BELTAB_S
  INTO TABLE IT_/BEV2/ED_BELTAB_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV2/ED_BELTAB_S
*  INTO TABLE @DATA(IT_/BEV2/ED_BELTAB_S2).
*--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_/BEV2/ED_BELTAB_S INDEX 1 INTO DATA(WA_/BEV2/ED_BELTAB_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BEV2/ED_BELTAB_S ASSIGNING </BEV2/ED_BELTAB_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV2/ED_BELTAB_S>-BUDAT = 1.
</BEV2/ED_BELTAB_S>-MATNR = 1.
</BEV2/ED_BELTAB_S>-MJAHR = 1.
</BEV2/ED_BELTAB_S>-MBLNR = 1.
</BEV2/ED_BELTAB_S>-ZEILE = 1.

ENDLOOP.

LOOP AT IT_/BEV2/ED_BELTAB_S INTO WA_/BEV2/ED_BELTAB_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV2/ED_BELTAB_S-BWART, sy-vline,
  WA_/BEV2/ED_BELTAB_S-MENGE, sy-vline,
  WA_/BEV2/ED_BELTAB_S-MEINS, sy-vline,
  WA_/BEV2/ED_BELTAB_S-SHKZG, sy-vline,
  WA_/BEV2/ED_BELTAB_S-HERKUNFT, sy-vline,
  WA_/BEV2/ED_BELTAB_S-UMRECHNUNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV2/ED_BELTAB_S 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_/BEV2/ED_BELTAB_S 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_/BEV2/ED_BELTAB_S INTO WA_/BEV2/ED_BELTAB_S.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/ED_BELTAB_S-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/ED_BELTAB_S-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/ED_BELTAB_S-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/ED_BELTAB_S-MJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/ED_BELTAB_S-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/ED_BELTAB_S-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/ED_BELTAB_S-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/ED_BELTAB_S-MEINS.
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_/BEV2/ED_BELTAB_S_STR, 
BUDAT TYPE STRING,
MATNR TYPE STRING,
MJAHR TYPE STRING,
MBLNR TYPE STRING,
ZEILE TYPE STRING,
BWART TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
SHKZG TYPE STRING,
HERKUNFT TYPE STRING,
UMRECHNUNG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV2/ED_BELTAB_S_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_/BEV2/ED_BELTAB_S_STR-BUDAT sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-MATNR sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-MJAHR sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-MBLNR sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-ZEILE sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-BWART sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-MENGE sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-MEINS sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-SHKZG sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-HERKUNFT sy-vline 
WA_/BEV2/ED_BELTAB_S_STR-UMRECHNUNG sy-vline      INTO ld_text SEPARATED BY SPACE.

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