ABAP Select data from SAP table VZBAVF_BCK into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VZBAVF_BCK
*  INTO TABLE @DATA(IT_VZBAVF_BCK2).
*--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_VZBAVF_BCK INDEX 1 INTO DATA(WA_VZBAVF_BCK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VZBAVF_BCK>-MANDT = 1.
<VZBAVF_BCK>-RANTYP = 1.
<VZBAVF_BCK>-VVKEY = 1.
<VZBAVF_BCK>-JDECK = 1.
<VZBAVF_BCK>-JBAVG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VZBAVF_BCK-XAKTZBAV, sy-vline,
  WA_VZBAVF_BCK-DBAVGEN, sy-vline,
  WA_VZBAVF_BCK-SGBAV, sy-vline,
  WA_VZBAVF_BCK-SBAV501, sy-vline,
  WA_VZBAVF_BCK-SBILK, sy-vline,
  WA_VZBAVF_BCK-JARW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VZBAVF_BCK 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_VZBAVF_BCK 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_VZBAVF_BCK INTO WA_VZBAVF_BCK.


*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 VVKEY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VZBAVF_BCK-VVKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VZBAVF_BCK-VVKEY.
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_VZBAVF_BCK_STR, 
MANDT TYPE STRING,
RANTYP TYPE STRING,
VVKEY TYPE STRING,
JDECK TYPE STRING,
JBAVG TYPE STRING,
XAKTZBAV TYPE STRING,
DBAVGEN TYPE STRING,
SGBAV TYPE STRING,
SBAV501 TYPE STRING,
SBILK TYPE STRING,
JARW TYPE STRING,
DARWGEN TYPE STRING,
XAKTZARW TYPE STRING,
XAUFORT TYPE STRING,
BARWBAV TYPE STRING,
SAWHR TYPE STRING,
DERWMEL TYPE STRING,
BVWERT TYPE STRING,
SVWHR TYPE STRING,
BARW_VU TYPE STRING,
SAWHR_VU TYPE STRING,
SNW101 TYPE STRING,
SNW102 TYPE STRING,
SNW201 TYPE STRING,
SJBUE TYPE STRING,
SNEU_ANL TYPE STRING,
XR5_91_1 TYPE STRING,
XR5_91_2 TYPE STRING,
XR5_91_3 TYPE STRING,
XTREU TYPE STRING,
XDECK TYPE STRING,
XARW TYPE STRING,
SMW102 TYPE STRING,
X_R97_03 TYPE STRING,
X_R97_05 TYPE STRING,
X_R97_06 TYPE STRING,
X_R97_08 TYPE STRING,
X_R97_101 TYPE STRING,
X_R97_102 TYPE STRING,
X_R97_103 TYPE STRING,
X_R97_104 TYPE STRING,
XTREU1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VZBAVF_BCK_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_VZBAVF_BCK_STR-MANDT sy-vline 
WA_VZBAVF_BCK_STR-RANTYP sy-vline 
WA_VZBAVF_BCK_STR-VVKEY sy-vline 
WA_VZBAVF_BCK_STR-JDECK sy-vline 
WA_VZBAVF_BCK_STR-JBAVG sy-vline 
WA_VZBAVF_BCK_STR-XAKTZBAV sy-vline 
WA_VZBAVF_BCK_STR-DBAVGEN sy-vline 
WA_VZBAVF_BCK_STR-SGBAV sy-vline 
WA_VZBAVF_BCK_STR-SBAV501 sy-vline 
WA_VZBAVF_BCK_STR-SBILK sy-vline 
WA_VZBAVF_BCK_STR-JARW sy-vline 
WA_VZBAVF_BCK_STR-DARWGEN sy-vline 
WA_VZBAVF_BCK_STR-XAKTZARW sy-vline 
WA_VZBAVF_BCK_STR-XAUFORT sy-vline 
WA_VZBAVF_BCK_STR-BARWBAV sy-vline 
WA_VZBAVF_BCK_STR-SAWHR sy-vline 
WA_VZBAVF_BCK_STR-DERWMEL sy-vline 
WA_VZBAVF_BCK_STR-BVWERT sy-vline 
WA_VZBAVF_BCK_STR-SVWHR sy-vline 
WA_VZBAVF_BCK_STR-BARW_VU sy-vline 
WA_VZBAVF_BCK_STR-SAWHR_VU sy-vline 
WA_VZBAVF_BCK_STR-SNW101 sy-vline 
WA_VZBAVF_BCK_STR-SNW102 sy-vline 
WA_VZBAVF_BCK_STR-SNW201 sy-vline 
WA_VZBAVF_BCK_STR-SJBUE sy-vline 
WA_VZBAVF_BCK_STR-SNEU_ANL sy-vline 
WA_VZBAVF_BCK_STR-XR5_91_1 sy-vline 
WA_VZBAVF_BCK_STR-XR5_91_2 sy-vline 
WA_VZBAVF_BCK_STR-XR5_91_3 sy-vline 
WA_VZBAVF_BCK_STR-XTREU sy-vline 
WA_VZBAVF_BCK_STR-XDECK sy-vline 
WA_VZBAVF_BCK_STR-XARW sy-vline 
WA_VZBAVF_BCK_STR-SMW102 sy-vline 
WA_VZBAVF_BCK_STR-X_R97_03 sy-vline 
WA_VZBAVF_BCK_STR-X_R97_05 sy-vline 
WA_VZBAVF_BCK_STR-X_R97_06 sy-vline 
WA_VZBAVF_BCK_STR-X_R97_08 sy-vline 
WA_VZBAVF_BCK_STR-X_R97_101 sy-vline 
WA_VZBAVF_BCK_STR-X_R97_102 sy-vline 
WA_VZBAVF_BCK_STR-X_R97_103 sy-vline 
WA_VZBAVF_BCK_STR-X_R97_104 sy-vline 
WA_VZBAVF_BCK_STR-XTREU1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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