ABAP Select data from SAP table VDBPOBREL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDBPOBREL
*  INTO TABLE @DATA(IT_VDBPOBREL2).
*--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_VDBPOBREL INDEX 1 INTO DATA(WA_VDBPOBREL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDBPOBREL>-ASSI_TYP = 1.
<VDBPOBREL>-ASSI_NR = 1.
<VDBPOBREL>-PARTNER = 1.
<VDBPOBREL>-RLTYP = 1.
<VDBPOBREL>-TRDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDBPOBREL-APPL, sy-vline,
  WA_VDBPOBREL-DATE_FROM, sy-vline,
  WA_VDBPOBREL-DATE_TO, sy-vline,
  WA_VDBPOBREL-NODE_KEY, sy-vline,
  WA_VDBPOBREL-ADR_KIND, sy-vline,
  WA_VDBPOBREL-TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VDBPOBREL 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_VDBPOBREL 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_VDBPOBREL INTO WA_VDBPOBREL.


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

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VDBPOBREL-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VDBPOBREL-KUNNR.
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_VDBPOBREL_STR, 
ASSI_TYP TYPE STRING,
ASSI_NR TYPE STRING,
PARTNER TYPE STRING,
RLTYP TYPE STRING,
TRDATE TYPE STRING,
APPL TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
NODE_KEY TYPE STRING,
ADR_KIND TYPE STRING,
TEXT TYPE STRING,
ROLE TYPE STRING,
KUNNR TYPE STRING,
BVTYP TYPE STRING,
ZLSCH TYPE STRING,
SDUNNDOC TYPE STRING,
SDUNNBUC TYPE STRING,
PBEZ TYPE STRING,
SANTART TYPE STRING,
XROLETYP TYPE STRING,
XROLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDBPOBREL_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_VDBPOBREL_STR-ASSI_TYP sy-vline 
WA_VDBPOBREL_STR-ASSI_NR sy-vline 
WA_VDBPOBREL_STR-PARTNER sy-vline 
WA_VDBPOBREL_STR-RLTYP sy-vline 
WA_VDBPOBREL_STR-TRDATE sy-vline 
WA_VDBPOBREL_STR-APPL sy-vline 
WA_VDBPOBREL_STR-DATE_FROM sy-vline 
WA_VDBPOBREL_STR-DATE_TO sy-vline 
WA_VDBPOBREL_STR-NODE_KEY sy-vline 
WA_VDBPOBREL_STR-ADR_KIND sy-vline 
WA_VDBPOBREL_STR-TEXT sy-vline 
WA_VDBPOBREL_STR-ROLE sy-vline 
WA_VDBPOBREL_STR-KUNNR sy-vline 
WA_VDBPOBREL_STR-BVTYP sy-vline 
WA_VDBPOBREL_STR-ZLSCH sy-vline 
WA_VDBPOBREL_STR-SDUNNDOC sy-vline 
WA_VDBPOBREL_STR-SDUNNBUC sy-vline 
WA_VDBPOBREL_STR-PBEZ sy-vline 
WA_VDBPOBREL_STR-SANTART sy-vline 
WA_VDBPOBREL_STR-XROLETYP sy-vline 
WA_VDBPOBREL_STR-XROLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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