ABAP Select data from SAP table VBPOK_HU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBPOK_HU
*  INTO TABLE @DATA(IT_VBPOK_HU2).
*--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_VBPOK_HU INDEX 1 INTO DATA(WA_VBPOK_HU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBPOK_HU>-VBELN_VL = 1.
<VBPOK_HU>-POSNR_VL = 1.
<VBPOK_HU>-DESTHU = 1.
<VBPOK_HU>-SOURCEHU = 1.
<VBPOK_HU>-KZUEB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBPOK_HU-VENUM_SOURCE, sy-vline,
  WA_VBPOK_HU-VEPOS_SOURCE, sy-vline,
  WA_VBPOK_HU-QUANTITY, sy-vline,
  WA_VBPOK_HU-MEINS, sy-vline,
  WA_VBPOK_HU-MATNR, sy-vline,
  WA_VBPOK_HU-CHARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBPOK_HU 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_VBPOK_HU 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_VBPOK_HU INTO WA_VBPOK_HU.


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

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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VBPOK_HU-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPOK_HU-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXIDV_OB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBPOK_HU-EXIDV_OB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBPOK_HU-EXIDV_OB.
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_VBPOK_HU_STR, 
VBELN_VL TYPE STRING,
POSNR_VL TYPE STRING,
DESTHU TYPE STRING,
SOURCEHU TYPE STRING,
KZUEB TYPE STRING,
VENUM_SOURCE TYPE STRING,
VEPOS_SOURCE TYPE STRING,
QUANTITY TYPE STRING,
MEINS TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
EXIDV_OB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBPOK_HU_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_VBPOK_HU_STR-VBELN_VL sy-vline 
WA_VBPOK_HU_STR-POSNR_VL sy-vline 
WA_VBPOK_HU_STR-DESTHU sy-vline 
WA_VBPOK_HU_STR-SOURCEHU sy-vline 
WA_VBPOK_HU_STR-KZUEB sy-vline 
WA_VBPOK_HU_STR-VENUM_SOURCE sy-vline 
WA_VBPOK_HU_STR-VEPOS_SOURCE sy-vline 
WA_VBPOK_HU_STR-QUANTITY sy-vline 
WA_VBPOK_HU_STR-MEINS sy-vline 
WA_VBPOK_HU_STR-MATNR sy-vline 
WA_VBPOK_HU_STR-CHARG sy-vline 
WA_VBPOK_HU_STR-EXIDV_OB sy-vline      INTO ld_text SEPARATED BY SPACE.

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