ABAP Select data from SAP table VZGPODEB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VZGPODEB
*  INTO TABLE @DATA(IT_VZGPODEB2).
*--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_VZGPODEB INDEX 1 INTO DATA(WA_VZGPODEB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VZGPODEB>-MANDT = 1.
<VZGPODEB>-SNUMOBJ = 1.
<VZGPODEB>-SOBJEKT = 1.
<VZGPODEB>-PARTNR = 1.
<VZGPODEB>-ROLETYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VZGPODEB-DTRANS, sy-vline,
  WA_VZGPODEB-DBEBEZ, sy-vline,
  WA_VZGPODEB-DENBEZ, sy-vline,
  WA_VZGPODEB-EXTPARTNR, sy-vline,
  WA_VZGPODEB-XROLETYP, sy-vline,
  WA_VZGPODEB-XPARTNER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VZGPODEB 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_VZGPODEB 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_VZGPODEB INTO WA_VZGPODEB.


*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 PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VZGPODEB-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VZGPODEB-PARTNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VZGPODEB-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VZGPODEB-LIFNR.
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_VZGPODEB_STR, 
MANDT TYPE STRING,
SNUMOBJ TYPE STRING,
SOBJEKT TYPE STRING,
PARTNR TYPE STRING,
ROLETYP TYPE STRING,
DTRANS TYPE STRING,
DBEBEZ TYPE STRING,
DENBEZ TYPE STRING,
EXTPARTNR TYPE STRING,
XROLETYP TYPE STRING,
XPARTNER TYPE STRING,
KUNNR TYPE STRING,
ROLE TYPE STRING,
APPL TYPE STRING,
ADR_REF TYPE STRING,
PBEZ TYPE STRING,
BBEZ TYPE STRING,
SBBEZ TYPE STRING,
ZLSCH TYPE STRING,
BVTYP TYPE STRING,
MABER TYPE STRING,
SDEBZUSA TYPE STRING,
KNRZE TYPE STRING,
SANTART TYPE STRING,
NAME1 TYPE STRING,
XDEBFI TYPE STRING,
ROLE_ALLG TYPE STRING,
XROLE_ALLG TYPE STRING,
PAY_DATA_C TYPE STRING,
SDUNNDOC TYPE STRING,
SDUNNBUC TYPE STRING,
LIFNR TYPE STRING,
LIFBVTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VZGPODEB_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_VZGPODEB_STR-MANDT sy-vline 
WA_VZGPODEB_STR-SNUMOBJ sy-vline 
WA_VZGPODEB_STR-SOBJEKT sy-vline 
WA_VZGPODEB_STR-PARTNR sy-vline 
WA_VZGPODEB_STR-ROLETYP sy-vline 
WA_VZGPODEB_STR-DTRANS sy-vline 
WA_VZGPODEB_STR-DBEBEZ sy-vline 
WA_VZGPODEB_STR-DENBEZ sy-vline 
WA_VZGPODEB_STR-EXTPARTNR sy-vline 
WA_VZGPODEB_STR-XROLETYP sy-vline 
WA_VZGPODEB_STR-XPARTNER sy-vline 
WA_VZGPODEB_STR-KUNNR sy-vline 
WA_VZGPODEB_STR-ROLE sy-vline 
WA_VZGPODEB_STR-APPL sy-vline 
WA_VZGPODEB_STR-ADR_REF sy-vline 
WA_VZGPODEB_STR-PBEZ sy-vline 
WA_VZGPODEB_STR-BBEZ sy-vline 
WA_VZGPODEB_STR-SBBEZ sy-vline 
WA_VZGPODEB_STR-ZLSCH sy-vline 
WA_VZGPODEB_STR-BVTYP sy-vline 
WA_VZGPODEB_STR-MABER sy-vline 
WA_VZGPODEB_STR-SDEBZUSA sy-vline 
WA_VZGPODEB_STR-KNRZE sy-vline 
WA_VZGPODEB_STR-SANTART sy-vline 
WA_VZGPODEB_STR-NAME1 sy-vline 
WA_VZGPODEB_STR-XDEBFI sy-vline 
WA_VZGPODEB_STR-ROLE_ALLG sy-vline 
WA_VZGPODEB_STR-XROLE_ALLG sy-vline 
WA_VZGPODEB_STR-PAY_DATA_C sy-vline 
WA_VZGPODEB_STR-SDUNNDOC sy-vline 
WA_VZGPODEB_STR-SDUNNBUC sy-vline 
WA_VZGPODEB_STR-LIFNR sy-vline 
WA_VZGPODEB_STR-LIFBVTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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