ABAP Select data from SAP table VAT_ITEM_SUMMARY into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VAT_ITEM_SUMMARY
*  INTO TABLE @DATA(IT_VAT_ITEM_SUMMARY2).
*--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_VAT_ITEM_SUMMARY INDEX 1 INTO DATA(WA_VAT_ITEM_SUMMARY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VAT_ITEM_SUMMARY>-FWSTE = 1.
<VAT_ITEM_SUMMARY>-KBETR = 1.
<VAT_ITEM_SUMMARY>-NDDSH = 1.
<VAT_ITEM_SUMMARY>-NDDST = 1.
<VAT_ITEM_SUMMARY>-NDDPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VAT_ITEM_SUMMARY-NDNSH, sy-vline,
  WA_VAT_ITEM_SUMMARY-NDNST, sy-vline,
  WA_VAT_ITEM_SUMMARY-NDNPE, sy-vline,
  WA_VAT_ITEM_SUMMARY-DEDSH, sy-vline,
  WA_VAT_ITEM_SUMMARY-DEDST, sy-vline,
  WA_VAT_ITEM_SUMMARY-DEDPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VAT_ITEM_SUMMARY 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_VAT_ITEM_SUMMARY 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_VAT_ITEM_SUMMARY INTO WA_VAT_ITEM_SUMMARY.


*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 AU132, internal->external for field FWSTE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_VAT_ITEM_SUMMARY-FWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VAT_ITEM_SUMMARY-FWSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field NDDST
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_VAT_ITEM_SUMMARY-NDDST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VAT_ITEM_SUMMARY-NDDST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field NDNST
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_VAT_ITEM_SUMMARY-NDNST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VAT_ITEM_SUMMARY-NDNST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DEDST
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_VAT_ITEM_SUMMARY-DEDST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VAT_ITEM_SUMMARY-DEDST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKFBT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_VAT_ITEM_SUMMARY-SKFBT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VAT_ITEM_SUMMARY-SKFBT.
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_VAT_ITEM_SUMMARY_STR, 
FWSTE TYPE STRING,
KBETR TYPE STRING,
NDDSH TYPE STRING,
NDDST TYPE STRING,
NDDPE TYPE STRING,
NDNSH TYPE STRING,
NDNST TYPE STRING,
NDNPE TYPE STRING,
DEDSH TYPE STRING,
DEDST TYPE STRING,
DEDPE TYPE STRING,
SKFBT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VAT_ITEM_SUMMARY_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_VAT_ITEM_SUMMARY_STR-FWSTE sy-vline 
WA_VAT_ITEM_SUMMARY_STR-KBETR sy-vline 
WA_VAT_ITEM_SUMMARY_STR-NDDSH sy-vline 
WA_VAT_ITEM_SUMMARY_STR-NDDST sy-vline 
WA_VAT_ITEM_SUMMARY_STR-NDDPE sy-vline 
WA_VAT_ITEM_SUMMARY_STR-NDNSH sy-vline 
WA_VAT_ITEM_SUMMARY_STR-NDNST sy-vline 
WA_VAT_ITEM_SUMMARY_STR-NDNPE sy-vline 
WA_VAT_ITEM_SUMMARY_STR-DEDSH sy-vline 
WA_VAT_ITEM_SUMMARY_STR-DEDST sy-vline 
WA_VAT_ITEM_SUMMARY_STR-DEDPE sy-vline 
WA_VAT_ITEM_SUMMARY_STR-SKFBT sy-vline      INTO ld_text SEPARATED BY SPACE.

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