ABAP Select data from SAP table CPSVARIANT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPSVARIANT
*  INTO TABLE @DATA(IT_CPSVARIANT2).
*--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_CPSVARIANT INDEX 1 INTO DATA(WA_CPSVARIANT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPSVARIANT>-MANDT = 1.
<CPSVARIANT>-PRODUCTSTRUCTUREVARIANTUUID = 1.
<CPSVARIANT>-PRODSTRUCVARIANTCHGSTATEINTID = 1.
<CPSVARIANT>-PRODSTRUCVARIANTUNIQUEID = 1.
<CPSVARIANT>-PRODUCTSTRUCTUREVARIANTNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPSVARIANT-PRODSTRUCTUREVARIANTPARENTUUID, sy-vline,
  WA_CPSVARIANT-PRODUCTSTRUCTUREVARIANTTYPE, sy-vline,
  WA_CPSVARIANT-PRODUCTSTRUCTURECREATIONDATE, sy-vline,
  WA_CPSVARIANT-PRODUCTSTRUCTURECREATEDBYUSER, sy-vline,
  WA_CPSVARIANT-PRODUCTSTRUCLASTCHANGEDDATE, sy-vline,
  WA_CPSVARIANT-PRODUCTSTRUCLASTCHANGEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPSVARIANT 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_CPSVARIANT 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_CPSVARIANT INTO WA_CPSVARIANT.


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

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

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

*Conversion exit CUNIT, internal->external for field PRODUCTSTRUCTUREVARIANTUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPSVARIANT-PRODUCTSTRUCTUREVARIANTUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPSVARIANT-PRODUCTSTRUCTUREVARIANTUNIT.
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_CPSVARIANT_STR, 
MANDT TYPE STRING,
PRODUCTSTRUCTUREVARIANTUUID TYPE STRING,
PRODSTRUCVARIANTCHGSTATEINTID TYPE STRING,
PRODSTRUCVARIANTUNIQUEID TYPE STRING,
PRODUCTSTRUCTUREVARIANTNAME TYPE STRING,
PRODSTRUCTUREVARIANTPARENTUUID TYPE STRING,
PRODUCTSTRUCTUREVARIANTTYPE TYPE STRING,
PRODUCTSTRUCTURECREATIONDATE TYPE STRING,
PRODUCTSTRUCTURECREATEDBYUSER TYPE STRING,
PRODUCTSTRUCLASTCHANGEDDATE TYPE STRING,
PRODUCTSTRUCLASTCHANGEDBYUSER TYPE STRING,
PRODSTRUCVARIANTDESCRIPTION TYPE STRING,
PRODSTRUCVARTYPEDESCRIPTION TYPE STRING,
PRODSTRUCVARIANTCHANGENUMBER TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
PRODSTRUCVARISMRKDFORDELETION TYPE STRING,
PRODSTRUCVARCHGNMBRDESCRIPTION TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
PRODUCTSTRUCTUREVARIANTQTY TYPE STRING,
PRODUCTSTRUCTUREVARIANTUNIT TYPE STRING,
MATERIALAUTHORIZATIONGROUP TYPE STRING,
PRODUCTSTRUCTURENODENAME TYPE STRING,
PRODSTRUCNODEDESCRIPTION TYPE STRING,
PRODUCTSTRUCTURENODETYPE TYPE STRING,
CLASS TYPE STRING,
CLASSNAME TYPE STRING,
PRODUCTSTRUCTUREGNRCOBJTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPSVARIANT_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_CPSVARIANT_STR-MANDT sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTUREVARIANTUUID sy-vline 
WA_CPSVARIANT_STR-PRODSTRUCVARIANTCHGSTATEINTID sy-vline 
WA_CPSVARIANT_STR-PRODSTRUCVARIANTUNIQUEID sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTUREVARIANTNAME sy-vline 
WA_CPSVARIANT_STR-PRODSTRUCTUREVARIANTPARENTUUID sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTUREVARIANTTYPE sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTURECREATIONDATE sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTURECREATEDBYUSER sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCLASTCHANGEDDATE sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCLASTCHANGEDBYUSER sy-vline 
WA_CPSVARIANT_STR-PRODSTRUCVARIANTDESCRIPTION sy-vline 
WA_CPSVARIANT_STR-PRODSTRUCVARTYPEDESCRIPTION sy-vline 
WA_CPSVARIANT_STR-PRODSTRUCVARIANTCHANGENUMBER sy-vline 
WA_CPSVARIANT_STR-AUTHORIZATIONGROUP sy-vline 
WA_CPSVARIANT_STR-PRODSTRUCVARISMRKDFORDELETION sy-vline 
WA_CPSVARIANT_STR-PRODSTRUCVARCHGNMBRDESCRIPTION sy-vline 
WA_CPSVARIANT_STR-MATERIAL sy-vline 
WA_CPSVARIANT_STR-MATERIALNAME sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTUREVARIANTQTY sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTUREVARIANTUNIT sy-vline 
WA_CPSVARIANT_STR-MATERIALAUTHORIZATIONGROUP sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTURENODENAME sy-vline 
WA_CPSVARIANT_STR-PRODSTRUCNODEDESCRIPTION sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTURENODETYPE sy-vline 
WA_CPSVARIANT_STR-CLASS sy-vline 
WA_CPSVARIANT_STR-CLASSNAME sy-vline 
WA_CPSVARIANT_STR-PRODUCTSTRUCTUREGNRCOBJTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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