ABAP Select data from SAP table CPSVVH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPSVVH
*  INTO TABLE @DATA(IT_CPSVVH2).
*--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_CPSVVH INDEX 1 INTO DATA(WA_CPSVVH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPSVVH>-MANDT = 1.
<CPSVVH>-PRODUCTSTRUCTUREVARIANTNAME = 1.
<CPSVVH>-PRODSTRUCVARIANTCHANGENUMBER = 1.
<CPSVVH>-PRODUCTSTRUCTURENODENAME = 1.
<CPSVVH>-CLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPSVVH-PRODSTRUCVARIANTDESCRIPTION, sy-vline,
  WA_CPSVVH-PRODSTRUCNODEDESCRIPTION, sy-vline,
  WA_CPSVVH-PRODSTRUCTUREVARIANTPARENTUUID, sy-vline,
  WA_CPSVVH-MATERIAL, sy-vline,
  WA_CPSVVH-PRODSTRUCVARIANTUNIQUEID, sy-vline,
  WA_CPSVVH-PRODUCTSTRUCTUREVARIANTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPSVVH 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_CPSVVH 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_CPSVVH INTO WA_CPSVVH.


*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_CPSVVH-PRODUCTSTRUCTUREVARIANTNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPSVVH-PRODUCTSTRUCTUREVARIANTNAME.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CPSVVH-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPSVVH-MATERIAL.
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_CPSVVH_STR, 
MANDT TYPE STRING,
PRODUCTSTRUCTUREVARIANTNAME TYPE STRING,
PRODSTRUCVARIANTCHANGENUMBER TYPE STRING,
PRODUCTSTRUCTURENODENAME TYPE STRING,
CLASS TYPE STRING,
PRODSTRUCVARIANTDESCRIPTION TYPE STRING,
PRODSTRUCNODEDESCRIPTION TYPE STRING,
PRODSTRUCTUREVARIANTPARENTUUID TYPE STRING,
MATERIAL TYPE STRING,
PRODSTRUCVARIANTUNIQUEID TYPE STRING,
PRODUCTSTRUCTUREVARIANTTYPE TYPE STRING,
PRODUCTSTRUCTUREGNRCOBJTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPSVVH_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_CPSVVH_STR-MANDT sy-vline 
WA_CPSVVH_STR-PRODUCTSTRUCTUREVARIANTNAME sy-vline 
WA_CPSVVH_STR-PRODSTRUCVARIANTCHANGENUMBER sy-vline 
WA_CPSVVH_STR-PRODUCTSTRUCTURENODENAME sy-vline 
WA_CPSVVH_STR-CLASS sy-vline 
WA_CPSVVH_STR-PRODSTRUCVARIANTDESCRIPTION sy-vline 
WA_CPSVVH_STR-PRODSTRUCNODEDESCRIPTION sy-vline 
WA_CPSVVH_STR-PRODSTRUCTUREVARIANTPARENTUUID sy-vline 
WA_CPSVVH_STR-MATERIAL sy-vline 
WA_CPSVVH_STR-PRODSTRUCVARIANTUNIQUEID sy-vline 
WA_CPSVVH_STR-PRODUCTSTRUCTUREVARIANTTYPE sy-vline 
WA_CPSVVH_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.