ABAP Select data from SAP table V_ANKBV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_ANKBV
*  INTO TABLE @DATA(IT_V_ANKBV2).
*--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_V_ANKBV INDEX 1 INTO DATA(WA_V_ANKBV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_ANKBV>-MANDT = 1.
<V_ANKBV>-ANLKL = 1.
<V_ANKBV>-AFAPL = 1.
<V_ANKBV>-AFABE = 1.
<V_ANKBV>-BDATU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_ANKBV-SPRAS, sy-vline,
  WA_V_ANKBV-NUMKR, sy-vline,
  WA_V_ANKBV-KTOGR, sy-vline,
  WA_V_ANKBV-TXK20, sy-vline,
  WA_V_ANKBV-TXK50, sy-vline,
  WA_V_ANKBV-XLTXID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_ANKBV 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_V_ANKBV 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_V_ANKBV INTO WA_V_ANKBV.


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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_V_ANKBV-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_ANKBV-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KTOGR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_ANKBV-KTOGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_ANKBV-KTOGR.
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_V_ANKBV_STR, 
MANDT TYPE STRING,
ANLKL TYPE STRING,
AFAPL TYPE STRING,
AFABE TYPE STRING,
BDATU TYPE STRING,
SPRAS TYPE STRING,
NUMKR TYPE STRING,
KTOGR TYPE STRING,
TXK20 TYPE STRING,
TXK50 TYPE STRING,
XLTXID TYPE STRING,
XGWGK TYPE STRING,
AFASL TYPE STRING,
XAFBE TYPE STRING,
XOPVW TYPE STRING,
ANLTP TYPE STRING,
AIMMO TYPE STRING,
XANLGR TYPE STRING,
XINVM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_ANKBV_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_V_ANKBV_STR-MANDT sy-vline 
WA_V_ANKBV_STR-ANLKL sy-vline 
WA_V_ANKBV_STR-AFAPL sy-vline 
WA_V_ANKBV_STR-AFABE sy-vline 
WA_V_ANKBV_STR-BDATU sy-vline 
WA_V_ANKBV_STR-SPRAS sy-vline 
WA_V_ANKBV_STR-NUMKR sy-vline 
WA_V_ANKBV_STR-KTOGR sy-vline 
WA_V_ANKBV_STR-TXK20 sy-vline 
WA_V_ANKBV_STR-TXK50 sy-vline 
WA_V_ANKBV_STR-XLTXID sy-vline 
WA_V_ANKBV_STR-XGWGK sy-vline 
WA_V_ANKBV_STR-AFASL sy-vline 
WA_V_ANKBV_STR-XAFBE sy-vline 
WA_V_ANKBV_STR-XOPVW sy-vline 
WA_V_ANKBV_STR-ANLTP sy-vline 
WA_V_ANKBV_STR-AIMMO sy-vline 
WA_V_ANKBV_STR-XANLGR sy-vline 
WA_V_ANKBV_STR-XINVM sy-vline      INTO ld_text SEPARATED BY SPACE.

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