ABAP Select data from SAP table PVARCONFIGINSTOW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PVARCONFIGINSTOW
*  INTO TABLE @DATA(IT_PVARCONFIGINSTOW2).
*--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_PVARCONFIGINSTOW INDEX 1 INTO DATA(WA_PVARCONFIGINSTOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PVARCONFIGINSTOW>-MANDT = 1.
<PVARCONFIGINSTOW>-VARCONFIGNINSTANCERECORDNO = 1.
<PVARCONFIGINSTOW>-IBASESTRUCCOMPRECORDNUMBER = 1.
<PVARCONFIGINSTOW>-VARIANTCONFIGURATIONINSTANCE = 1.
<PVARCONFIGINSTOW>-VARIANTCONFIGNINSTANCEPRODUCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PVARCONFIGINSTOW-VARIANTCONFIGURATIONDATE, sy-vline,
  WA_PVARCONFIGINSTOW-VARCONFIGNINSTCEBUSOBJECTKEY, sy-vline,
  WA_PVARCONFIGINSTOW-VARCONFIGNINSTCEBUSOBJECTTYPE, sy-vline,
  WA_PVARCONFIGINSTOW-VARCONFIGURATIONROOTINSTANCE, sy-vline,
  WA_PVARCONFIGINSTOW-VARCONFIGURATIONPARENTINSTANCE, sy-vline,
  WA_PVARCONFIGINSTOW-VARCONFIGNINSTANCEOBJECTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PVARCONFIGINSTOW 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_PVARCONFIGINSTOW 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_PVARCONFIGINSTOW INTO WA_PVARCONFIGINSTOW.


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

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

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

*Conversion exit ALPHA, internal->external for field IBASE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PVARCONFIGINSTOW-IBASE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PVARCONFIGINSTOW-IBASE.
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_PVARCONFIGINSTOW_STR, 
MANDT TYPE STRING,
VARCONFIGNINSTANCERECORDNO TYPE STRING,
IBASESTRUCCOMPRECORDNUMBER TYPE STRING,
VARIANTCONFIGURATIONINSTANCE TYPE STRING,
VARIANTCONFIGNINSTANCEPRODUCT TYPE STRING,
VARIANTCONFIGURATIONDATE TYPE STRING,
VARCONFIGNINSTCEBUSOBJECTKEY TYPE STRING,
VARCONFIGNINSTCEBUSOBJECTTYPE TYPE STRING,
VARCONFIGURATIONROOTINSTANCE TYPE STRING,
VARCONFIGURATIONPARENTINSTANCE TYPE STRING,
VARCONFIGNINSTANCEOBJECTTYPE TYPE STRING,
IBASE TYPE STRING,
CONFIGURATIONPROFILECOUNTER TYPE STRING,
BUSOBJISVARCONFIGNOWNER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PVARCONFIGINSTOW_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_PVARCONFIGINSTOW_STR-MANDT sy-vline 
WA_PVARCONFIGINSTOW_STR-VARCONFIGNINSTANCERECORDNO sy-vline 
WA_PVARCONFIGINSTOW_STR-IBASESTRUCCOMPRECORDNUMBER sy-vline 
WA_PVARCONFIGINSTOW_STR-VARIANTCONFIGURATIONINSTANCE sy-vline 
WA_PVARCONFIGINSTOW_STR-VARIANTCONFIGNINSTANCEPRODUCT sy-vline 
WA_PVARCONFIGINSTOW_STR-VARIANTCONFIGURATIONDATE sy-vline 
WA_PVARCONFIGINSTOW_STR-VARCONFIGNINSTCEBUSOBJECTKEY sy-vline 
WA_PVARCONFIGINSTOW_STR-VARCONFIGNINSTCEBUSOBJECTTYPE sy-vline 
WA_PVARCONFIGINSTOW_STR-VARCONFIGURATIONROOTINSTANCE sy-vline 
WA_PVARCONFIGINSTOW_STR-VARCONFIGURATIONPARENTINSTANCE sy-vline 
WA_PVARCONFIGINSTOW_STR-VARCONFIGNINSTANCEOBJECTTYPE sy-vline 
WA_PVARCONFIGINSTOW_STR-IBASE sy-vline 
WA_PVARCONFIGINSTOW_STR-CONFIGURATIONPROFILECOUNTER sy-vline 
WA_PVARCONFIGINSTOW_STR-BUSOBJISVARCONFIGNOWNER sy-vline      INTO ld_text SEPARATED BY SPACE.

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