ABAP Select data from SAP table VEKABVB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEKABVB
*  INTO TABLE @DATA(IT_VEKABVB2).
*--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_VEKABVB INDEX 1 INTO DATA(WA_VEKABVB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEKABVB>-INCLUDE = 1.
<VEKABVB>-MANDT = 1.
<VEKABVB>-NUMMBUKRS = 1.
<VEKABVB>-DATUMJAHR = 1.
<VEKABVB>-DATUMMONA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEKABVB-ARRIVDEPA, sy-vline,
  WA_VEKABVB-LFDNRVEKA, sy-vline,
  WA_VEKABVB-FIRMNUMME, sy-vline,
  WA_VEKABVB-AUSFUZOLL, sy-vline,
  WA_VEKABVB-AUSFUNAME, sy-vline,
  WA_VEKABVB-AUSFUSTRA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEKABVB 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_VEKABVB 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_VEKABVB INTO WA_VEKABVB.


*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 GJAHR, internal->external for field DATUMJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VEKABVB-DATUMJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEKABVB-DATUMJAHR.
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_VEKABVB_STR, 
INCLUDE TYPE STRING,
MANDT TYPE STRING,
NUMMBUKRS TYPE STRING,
DATUMJAHR TYPE STRING,
DATUMMONA TYPE STRING,
ARRIVDEPA TYPE STRING,
LFDNRVEKA TYPE STRING,
FIRMNUMME TYPE STRING,
AUSFUZOLL TYPE STRING,
AUSFUNAME TYPE STRING,
AUSFUSTRA TYPE STRING,
AUSFUNATI TYPE STRING,
AUSFUPOST TYPE STRING,
AUSFUORTE TYPE STRING,
EMPFEZOLL TYPE STRING,
EMPFENAME TYPE STRING,
EMPFESTRA TYPE STRING,
EMPFENATI TYPE STRING,
EMPFEPOST TYPE STRING,
EMPFEORTE TYPE STRING,
HANDELAND TYPE STRING,
BESTILAND TYPE STRING,
BEFIABGAN TYPE STRING,
BEFIGRENZ TYPE STRING,
ARTGESCHA TYPE STRING,
EINLADFGH TYPE STRING,
UNIXKENNZ TYPE STRING,
FLAGEUROC TYPE STRING,
UPDKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEKABVB_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_VEKABVB_STR-INCLUDE sy-vline 
WA_VEKABVB_STR-MANDT sy-vline 
WA_VEKABVB_STR-NUMMBUKRS sy-vline 
WA_VEKABVB_STR-DATUMJAHR sy-vline 
WA_VEKABVB_STR-DATUMMONA sy-vline 
WA_VEKABVB_STR-ARRIVDEPA sy-vline 
WA_VEKABVB_STR-LFDNRVEKA sy-vline 
WA_VEKABVB_STR-FIRMNUMME sy-vline 
WA_VEKABVB_STR-AUSFUZOLL sy-vline 
WA_VEKABVB_STR-AUSFUNAME sy-vline 
WA_VEKABVB_STR-AUSFUSTRA sy-vline 
WA_VEKABVB_STR-AUSFUNATI sy-vline 
WA_VEKABVB_STR-AUSFUPOST sy-vline 
WA_VEKABVB_STR-AUSFUORTE sy-vline 
WA_VEKABVB_STR-EMPFEZOLL sy-vline 
WA_VEKABVB_STR-EMPFENAME sy-vline 
WA_VEKABVB_STR-EMPFESTRA sy-vline 
WA_VEKABVB_STR-EMPFENATI sy-vline 
WA_VEKABVB_STR-EMPFEPOST sy-vline 
WA_VEKABVB_STR-EMPFEORTE sy-vline 
WA_VEKABVB_STR-HANDELAND sy-vline 
WA_VEKABVB_STR-BESTILAND sy-vline 
WA_VEKABVB_STR-BEFIABGAN sy-vline 
WA_VEKABVB_STR-BEFIGRENZ sy-vline 
WA_VEKABVB_STR-ARTGESCHA sy-vline 
WA_VEKABVB_STR-EINLADFGH sy-vline 
WA_VEKABVB_STR-UNIXKENNZ sy-vline 
WA_VEKABVB_STR-FLAGEUROC sy-vline 
WA_VEKABVB_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.