ABAP Select data from SAP table VVDHOBJGT 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 VVDHOBJGT 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 VVDHOBJGT. 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 VVDHOBJGT 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_VVDHOBJGT TYPE STANDARD TABLE OF VVDHOBJGT,
      WA_VVDHOBJGT TYPE VVDHOBJGT,
      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: <VVDHOBJGT> TYPE VVDHOBJGT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VVDHOBJGT
*  INTO TABLE @DATA(IT_VVDHOBJGT2).
*--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_VVDHOBJGT INDEX 1 INTO DATA(WA_VVDHOBJGT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VVDHOBJGT>-MANDT = 1.
<VVDHOBJGT>-ROBJNR = 1.
<VVDHOBJGT>-NGEBTEIL = 1.
<VVDHOBJGT>-RERF = 1.
<VVDHOBJGT>-DERF = 1.

ENDLOOP.

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

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


*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 YBAUGT
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VVDHOBJGT-YBAUGT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVDHOBJGT-YBAUGT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SUMASSE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VVDHOBJGT-SUMASSE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VVDHOBJGT-SUMASSE.
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_VVDHOBJGT_STR, 
MANDT TYPE STRING,
ROBJNR TYPE STRING,
NGEBTEIL 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,
SNUTZART TYPE STRING,
ASTELL TYPE STRING,
AGARAGE TYPE STRING,
FAUSSEN TYPE STRING,
YBAUGT TYPE STRING,
SGTART TYPE STRING,
SUMASSE TYPE STRING,
MMASSE TYPE STRING,
XLAGE TYPE STRING,
FMIET TYPE STRING,
BMITEIG TYPE STRING,
RFAKT TYPE STRING,
SOBJBAU TYPE STRING,
FNUTZ TYPE STRING,
XGTART TYPE STRING,
AWOHN TYPE STRING,
AGEWERB TYPE STRING,
AGESCHOSS TYPE STRING,
DGESCHOSS TYPE STRING,
BASEMENT TYPE STRING,
MBGF TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VVDHOBJGT_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_VVDHOBJGT_STR-MANDT sy-vline 
WA_VVDHOBJGT_STR-ROBJNR sy-vline 
WA_VVDHOBJGT_STR-NGEBTEIL sy-vline 
WA_VVDHOBJGT_STR-RERF sy-vline 
WA_VVDHOBJGT_STR-DERF sy-vline 
WA_VVDHOBJGT_STR-TERF sy-vline 
WA_VVDHOBJGT_STR-REHER sy-vline 
WA_VVDHOBJGT_STR-RBEAR sy-vline 
WA_VVDHOBJGT_STR-DBEAR sy-vline 
WA_VVDHOBJGT_STR-TBEAR sy-vline 
WA_VVDHOBJGT_STR-RBHER sy-vline 
WA_VVDHOBJGT_STR-SNUTZART sy-vline 
WA_VVDHOBJGT_STR-ASTELL sy-vline 
WA_VVDHOBJGT_STR-AGARAGE sy-vline 
WA_VVDHOBJGT_STR-FAUSSEN sy-vline 
WA_VVDHOBJGT_STR-YBAUGT sy-vline 
WA_VVDHOBJGT_STR-SGTART sy-vline 
WA_VVDHOBJGT_STR-SUMASSE sy-vline 
WA_VVDHOBJGT_STR-MMASSE sy-vline 
WA_VVDHOBJGT_STR-XLAGE sy-vline 
WA_VVDHOBJGT_STR-FMIET sy-vline 
WA_VVDHOBJGT_STR-BMITEIG sy-vline 
WA_VVDHOBJGT_STR-RFAKT sy-vline 
WA_VVDHOBJGT_STR-SOBJBAU sy-vline 
WA_VVDHOBJGT_STR-FNUTZ sy-vline 
WA_VVDHOBJGT_STR-XGTART sy-vline 
WA_VVDHOBJGT_STR-AWOHN sy-vline 
WA_VVDHOBJGT_STR-AGEWERB sy-vline 
WA_VVDHOBJGT_STR-AGESCHOSS sy-vline 
WA_VVDHOBJGT_STR-DGESCHOSS sy-vline 
WA_VVDHOBJGT_STR-BASEMENT sy-vline 
WA_VVDHOBJGT_STR-MBGF sy-vline 
WA_VVDHOBJGT_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.