ABAP Select data from SAP table VBREVRVB into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VBREVRVB 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 VBREVRVB. 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 VBREVRVB 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_VBREVRVB TYPE STANDARD TABLE OF VBREVRVB,
      WA_VBREVRVB TYPE VBREVRVB,
      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: <VBREVRVB> TYPE VBREVRVB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBREVRVB
*  INTO TABLE @DATA(IT_VBREVRVB2).
*--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_VBREVRVB INDEX 1 INTO DATA(WA_VBREVRVB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBREVRVB>-MANDT = 1.
<VBREVRVB>-VBELN = 1.
<VBREVRVB>-POSNR = 1.
<VBREVRVB>-BDJPOPER = 1.
<VBREVRVB>-VBELN_N = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBREVRVB-POSNR_N, sy-vline,
  WA_VBREVRVB-SAKRR, sy-vline,
  WA_VBREVRVB-SAKRRK, sy-vline,
  WA_VBREVRVB-SAKRV, sy-vline,
  WA_VBREVRVB-WRBTR, sy-vline,
  WA_VBREVRVB-RVAMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBREVRVB 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_VBREVRVB 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_VBREVRVB INTO WA_VBREVRVB.


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

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

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

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

*Conversion exit ALPHA, internal->external for field SAKRV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBREVRVB-SAKRV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBREVRVB-SAKRV.
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_VBREVRVB_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
BDJPOPER TYPE STRING,
VBELN_N TYPE STRING,
POSNR_N TYPE STRING,
SAKRR TYPE STRING,
SAKRRK TYPE STRING,
SAKRV TYPE STRING,
WRBTR TYPE STRING,
RVAMT TYPE STRING,
WAERK TYPE STRING,
RRSTA TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
BUDAT TYPE STRING,
DMBTR TYPE STRING,
RVAMT_LC TYPE STRING,
HWAER TYPE STRING,
KSTAT TYPE STRING,
KRUEK TYPE STRING,
INVUPD TYPE STRING,
UPDKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBREVRVB_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_VBREVRVB_STR-MANDT sy-vline 
WA_VBREVRVB_STR-VBELN sy-vline 
WA_VBREVRVB_STR-POSNR sy-vline 
WA_VBREVRVB_STR-BDJPOPER sy-vline 
WA_VBREVRVB_STR-VBELN_N sy-vline 
WA_VBREVRVB_STR-POSNR_N sy-vline 
WA_VBREVRVB_STR-SAKRR sy-vline 
WA_VBREVRVB_STR-SAKRRK sy-vline 
WA_VBREVRVB_STR-SAKRV sy-vline 
WA_VBREVRVB_STR-WRBTR sy-vline 
WA_VBREVRVB_STR-RVAMT sy-vline 
WA_VBREVRVB_STR-WAERK sy-vline 
WA_VBREVRVB_STR-RRSTA sy-vline 
WA_VBREVRVB_STR-ERDAT sy-vline 
WA_VBREVRVB_STR-ERZET sy-vline 
WA_VBREVRVB_STR-BUDAT sy-vline 
WA_VBREVRVB_STR-DMBTR sy-vline 
WA_VBREVRVB_STR-RVAMT_LC sy-vline 
WA_VBREVRVB_STR-HWAER sy-vline 
WA_VBREVRVB_STR-KSTAT sy-vline 
WA_VBREVRVB_STR-KRUEK sy-vline 
WA_VBREVRVB_STR-INVUPD sy-vline 
WA_VBREVRVB_STR-UPDKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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