ABAP Select data from SAP table VVDBLBOW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVDBLBOW
*  INTO TABLE @DATA(IT_VVDBLBOW2).
*--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_VVDBLBOW INDEX 1 INTO DATA(WA_VVDBLBOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVDBLBOW>-MANDT = 1.
<VVDBLBOW>-RBLNR = 1.
<VVDBLBOW>-SLFDGRST = 1.
<VVDBLBOW>-RERF = 1.
<VVDBLBOW>-DERF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VVDBLBOW-TERF, sy-vline,
  WA_VVDBLBOW-REHER, sy-vline,
  WA_VVDBLBOW-RBEAR, sy-vline,
  WA_VVDBLBOW-DBEAR, sy-vline,
  WA_VVDBLBOW-TBEAR, sy-vline,
  WA_VVDBLBOW-RBHER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VVDBLBOW 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_VVDBLBOW 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_VVDBLBOW INTO WA_VVDBLBOW.


*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 CUNIT, internal->external for field SUFLAE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VVDBLBOW-SUFLAE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVDBLBOW-SUFLAE.
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_VVDBLBOW_STR, 
MANDT TYPE STRING,
RBLNR TYPE STRING,
SLFDGRST TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
NFLURNR TYPE STRING,
SOBJART TYPE STRING,
SOBJLAGE TYPE STRING,
BBODEN TYPE STRING,
BBODOERB TYPE STRING,
BERSCHEH TYPE STRING,
FLAECHE TYPE STRING,
BGPREIS TYPE STRING,
BFLAEEH TYPE STRING,
SBELWHR TYPE STRING,
SUFLAE TYPE STRING,
XFLURST TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVDBLBOW_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_VVDBLBOW_STR-MANDT sy-vline 
WA_VVDBLBOW_STR-RBLNR sy-vline 
WA_VVDBLBOW_STR-SLFDGRST sy-vline 
WA_VVDBLBOW_STR-RERF sy-vline 
WA_VVDBLBOW_STR-DERF sy-vline 
WA_VVDBLBOW_STR-TERF sy-vline 
WA_VVDBLBOW_STR-REHER sy-vline 
WA_VVDBLBOW_STR-RBEAR sy-vline 
WA_VVDBLBOW_STR-DBEAR sy-vline 
WA_VVDBLBOW_STR-TBEAR sy-vline 
WA_VVDBLBOW_STR-RBHER sy-vline 
WA_VVDBLBOW_STR-NFLURNR sy-vline 
WA_VVDBLBOW_STR-SOBJART sy-vline 
WA_VVDBLBOW_STR-SOBJLAGE sy-vline 
WA_VVDBLBOW_STR-BBODEN sy-vline 
WA_VVDBLBOW_STR-BBODOERB sy-vline 
WA_VVDBLBOW_STR-BERSCHEH sy-vline 
WA_VVDBLBOW_STR-FLAECHE sy-vline 
WA_VVDBLBOW_STR-BGPREIS sy-vline 
WA_VVDBLBOW_STR-BFLAEEH sy-vline 
WA_VVDBLBOW_STR-SBELWHR sy-vline 
WA_VVDBLBOW_STR-SUFLAE sy-vline 
WA_VVDBLBOW_STR-XFLURST sy-vline 
WA_VVDBLBOW_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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