ABAP Select data from SAP table VDHOBJ 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 VDHOBJ 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 VDHOBJ. 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 VDHOBJ 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_VDHOBJ TYPE STANDARD TABLE OF VDHOBJ,
      WA_VDHOBJ TYPE VDHOBJ,
      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: <VDHOBJ> TYPE VDHOBJ.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDHOBJ
*  INTO TABLE @DATA(IT_VDHOBJ2).
*--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_VDHOBJ INDEX 1 INTO DATA(WA_VDHOBJ2).


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

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

ENDLOOP.

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

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


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

*Conversion exit GJAHR, internal->external for field YLMOD
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VDHOBJ-YLMOD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDHOBJ-YLMOD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field FEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VDHOBJ-FEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDHOBJ-FEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field REINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VDHOBJ-REINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDHOBJ-REINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BOBADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDHOBJ-BOBADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDHOBJ-BOBADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field YBAUJF
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VDHOBJ-YBAUJF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDHOBJ-YBAUJF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CMLQT, internal->external for field BAUINDEX_STAND
CALL FUNCTION 'CONVERSION_EXIT_CMLQT_OUTPUT'
  EXPORTING
    input =                      WA_VDHOBJ-BAUINDEX_STAND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDHOBJ-BAUINDEX_STAND.
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_VDHOBJ_STR, 
MANDT TYPE STRING,
ROBJNR 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,
SGRUNDB TYPE STRING,
SOBJART TYPE STRING,
SNUTZART TYPE STRING,
SOBJBAU TYPE STRING,
SOBJGEB TYPE STRING,
SOBJLAGE TYPE STRING,
SVERKEHR TYPE STRING,
SOBJZUST TYPE STRING,
SOBJAUST TYPE STRING,
DANTBAU TYPE STRING,
DBAUGENE TYPE STRING,
XBAUGENE TYPE STRING,
DBEZUGSF TYPE STRING,
DFERTIG TYPE STRING,
DSCHLUSS TYPE STRING,
YBAUJ TYPE STRING,
YLMOD TYPE STRING,
SGVER TYPE STRING,
NWOHNNR TYPE STRING,
NGESCHNR TYPE STRING,
BBAUW13 TYPE STRING,
BKAUF TYPE STRING,
SKAUFWHR TYPE STRING,
DKAUF TYPE STRING,
FEINS TYPE STRING,
REINS TYPE STRING,
SZWANG TYPE STRING,
JERBBAU TYPE STRING,
JREICHSH TYPE STRING,
DERBBAU TYPE STRING,
JDENKMAL TYPE STRING,
RFAKT TYPE STRING,
BMITEIG TYPE STRING,
RKLAMMER TYPE STRING,
JHAUPT TYPE STRING,
XOBJALT TYPE STRING,
SFGKZ TYPE STRING,
BOBADRNR TYPE STRING,
YBAUJF TYPE STRING,
MODGRAD TYPE STRING,
WRND TYPE STRING,
MOD_RND TYPE STRING,
ASTUFE TYPE STRING,
GND TYPE STRING,
BAUINDEX_STAND TYPE STRING,
LRINTRENO TYPE STRING,
LRDISTRICT TYPE STRING,
LRVOLUMENO TYPE STRING,
LRPAGENO TYPE STRING,
LRTYPE TYPE STRING,
XLR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDHOBJ_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_VDHOBJ_STR-MANDT sy-vline 
WA_VDHOBJ_STR-ROBJNR sy-vline 
WA_VDHOBJ_STR-RERF sy-vline 
WA_VDHOBJ_STR-DERF sy-vline 
WA_VDHOBJ_STR-TERF sy-vline 
WA_VDHOBJ_STR-REHER sy-vline 
WA_VDHOBJ_STR-RBEAR sy-vline 
WA_VDHOBJ_STR-DBEAR sy-vline 
WA_VDHOBJ_STR-TBEAR sy-vline 
WA_VDHOBJ_STR-RBHER sy-vline 
WA_VDHOBJ_STR-SGRUNDB sy-vline 
WA_VDHOBJ_STR-SOBJART sy-vline 
WA_VDHOBJ_STR-SNUTZART sy-vline 
WA_VDHOBJ_STR-SOBJBAU sy-vline 
WA_VDHOBJ_STR-SOBJGEB sy-vline 
WA_VDHOBJ_STR-SOBJLAGE sy-vline 
WA_VDHOBJ_STR-SVERKEHR sy-vline 
WA_VDHOBJ_STR-SOBJZUST sy-vline 
WA_VDHOBJ_STR-SOBJAUST sy-vline 
WA_VDHOBJ_STR-DANTBAU sy-vline 
WA_VDHOBJ_STR-DBAUGENE sy-vline 
WA_VDHOBJ_STR-XBAUGENE sy-vline 
WA_VDHOBJ_STR-DBEZUGSF sy-vline 
WA_VDHOBJ_STR-DFERTIG sy-vline 
WA_VDHOBJ_STR-DSCHLUSS sy-vline 
WA_VDHOBJ_STR-YBAUJ sy-vline 
WA_VDHOBJ_STR-YLMOD sy-vline 
WA_VDHOBJ_STR-SGVER sy-vline 
WA_VDHOBJ_STR-NWOHNNR sy-vline 
WA_VDHOBJ_STR-NGESCHNR sy-vline 
WA_VDHOBJ_STR-BBAUW13 sy-vline 
WA_VDHOBJ_STR-BKAUF sy-vline 
WA_VDHOBJ_STR-SKAUFWHR sy-vline 
WA_VDHOBJ_STR-DKAUF sy-vline 
WA_VDHOBJ_STR-FEINS sy-vline 
WA_VDHOBJ_STR-REINS sy-vline 
WA_VDHOBJ_STR-SZWANG sy-vline 
WA_VDHOBJ_STR-JERBBAU sy-vline 
WA_VDHOBJ_STR-JREICHSH sy-vline 
WA_VDHOBJ_STR-DERBBAU sy-vline 
WA_VDHOBJ_STR-JDENKMAL sy-vline 
WA_VDHOBJ_STR-RFAKT sy-vline 
WA_VDHOBJ_STR-BMITEIG sy-vline 
WA_VDHOBJ_STR-RKLAMMER sy-vline 
WA_VDHOBJ_STR-JHAUPT sy-vline 
WA_VDHOBJ_STR-XOBJALT sy-vline 
WA_VDHOBJ_STR-SFGKZ sy-vline 
WA_VDHOBJ_STR-BOBADRNR sy-vline 
WA_VDHOBJ_STR-YBAUJF sy-vline 
WA_VDHOBJ_STR-MODGRAD sy-vline 
WA_VDHOBJ_STR-WRND sy-vline 
WA_VDHOBJ_STR-MOD_RND sy-vline 
WA_VDHOBJ_STR-ASTUFE sy-vline 
WA_VDHOBJ_STR-GND sy-vline 
WA_VDHOBJ_STR-BAUINDEX_STAND sy-vline 
WA_VDHOBJ_STR-LRINTRENO sy-vline 
WA_VDHOBJ_STR-LRDISTRICT sy-vline 
WA_VDHOBJ_STR-LRVOLUMENO sy-vline 
WA_VDHOBJ_STR-LRPAGENO sy-vline 
WA_VDHOBJ_STR-LRTYPE sy-vline 
WA_VDHOBJ_STR-XLR sy-vline      INTO ld_text SEPARATED BY SPACE.

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