ABAP Select data from SAP table VBREVK 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 VBREVK 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 VBREVK. 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 VBREVK 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_VBREVK TYPE STANDARD TABLE OF VBREVK,
      WA_VBREVK TYPE VBREVK,
      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: <VBREVK> TYPE VBREVK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBREVK
*  INTO TABLE @DATA(IT_VBREVK2).
*--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_VBREVK INDEX 1 INTO DATA(WA_VBREVK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBREVK>-MANDT = 1.
<VBREVK>-VBELN = 1.
<VBREVK>-POSNR = 1.
<VBREVK>-SAKRR = 1.
<VBREVK>-SAKRRK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBREVK-ACC_VALUE, sy-vline,
  WA_VBREVK-WRBTR, sy-vline,
  WA_VBREVK-RVAMT, sy-vline,
  WA_VBREVK-WAERK, sy-vline,
  WA_VBREVK-BDJPOPER, sy-vline,
  WA_VBREVK-ACCPD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBREVK 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_VBREVK 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_VBREVK INTO WA_VBREVK.


*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_VBREVK-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBREVK-VBELN.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_VBREVK-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBREVK-PS_PSP_PNR.
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_VBREVK_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
SAKRR TYPE STRING,
SAKRRK TYPE STRING,
ACC_VALUE TYPE STRING,
WRBTR TYPE STRING,
RVAMT TYPE STRING,
WAERK TYPE STRING,
BDJPOPER TYPE STRING,
ACCPD TYPE STRING,
BUKRS TYPE STRING,
KUNAG TYPE STRING,
LAND1 TYPE STRING,
AUART TYPE STRING,
RRREL TYPE STRING,
RRSTA TYPE STRING,
DUKZ TYPE STRING,
VBELN_V TYPE STRING,
POSNR_V TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
PAOBJNR TYPE STRING,
PRCTR TYPE STRING,
BASE_DAT TYPE STRING,
PS_PSP_PNR TYPE STRING,
ACC_VALUE_LC TYPE STRING,
DMBTR TYPE STRING,
RVAMT_LC TYPE STRING,
HWAER TYPE STRING,
KSTAT TYPE STRING,
KRUEK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBREVK_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_VBREVK_STR-MANDT sy-vline 
WA_VBREVK_STR-VBELN sy-vline 
WA_VBREVK_STR-POSNR sy-vline 
WA_VBREVK_STR-SAKRR sy-vline 
WA_VBREVK_STR-SAKRRK sy-vline 
WA_VBREVK_STR-ACC_VALUE sy-vline 
WA_VBREVK_STR-WRBTR sy-vline 
WA_VBREVK_STR-RVAMT sy-vline 
WA_VBREVK_STR-WAERK sy-vline 
WA_VBREVK_STR-BDJPOPER sy-vline 
WA_VBREVK_STR-ACCPD sy-vline 
WA_VBREVK_STR-BUKRS sy-vline 
WA_VBREVK_STR-KUNAG sy-vline 
WA_VBREVK_STR-LAND1 sy-vline 
WA_VBREVK_STR-AUART sy-vline 
WA_VBREVK_STR-RRREL sy-vline 
WA_VBREVK_STR-RRSTA sy-vline 
WA_VBREVK_STR-DUKZ sy-vline 
WA_VBREVK_STR-VBELN_V sy-vline 
WA_VBREVK_STR-POSNR_V sy-vline 
WA_VBREVK_STR-ERDAT sy-vline 
WA_VBREVK_STR-ERZET sy-vline 
WA_VBREVK_STR-PAOBJNR sy-vline 
WA_VBREVK_STR-PRCTR sy-vline 
WA_VBREVK_STR-BASE_DAT sy-vline 
WA_VBREVK_STR-PS_PSP_PNR sy-vline 
WA_VBREVK_STR-ACC_VALUE_LC sy-vline 
WA_VBREVK_STR-DMBTR sy-vline 
WA_VBREVK_STR-RVAMT_LC sy-vline 
WA_VBREVK_STR-HWAER sy-vline 
WA_VBREVK_STR-KSTAT sy-vline 
WA_VBREVK_STR-KRUEK sy-vline      INTO ld_text SEPARATED BY SPACE.

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