ABAP Select data from SAP table IPRODUCTVH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPRODUCTVH
*  INTO TABLE @DATA(IT_IPRODUCTVH2).
*--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_IPRODUCTVH INDEX 1 INTO DATA(WA_IPRODUCTVH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPRODUCTVH>-MANDT = 1.
<IPRODUCTVH>-PRODUCT = 1.
<IPRODUCTVH>-PRODUCTEXTERNALID = 1.
<IPRODUCTVH>-INDUSTRYSECTOR = 1.
<IPRODUCTVH>-PRODUCTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPRODUCTVH-PRODUCTGROUP, sy-vline,
  WA_IPRODUCTVH-BASEUNIT, sy-vline,
  WA_IPRODUCTVH-GROSSWEIGHT, sy-vline,
  WA_IPRODUCTVH-NETWEIGHT, sy-vline,
  WA_IPRODUCTVH-WEIGHTUNIT, sy-vline,
  WA_IPRODUCTVH-MANUFACTURERNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPRODUCTVH 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_IPRODUCTVH 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_IPRODUCTVH INTO WA_IPRODUCTVH.


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

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

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

*Conversion exit ALPHA, internal->external for field MANUFACTURERNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPRODUCTVH-MANUFACTURERNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPRODUCTVH-MANUFACTURERNUMBER.
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_IPRODUCTVH_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
PRODUCTEXTERNALID TYPE STRING,
INDUSTRYSECTOR TYPE STRING,
PRODUCTTYPE TYPE STRING,
PRODUCTGROUP TYPE STRING,
BASEUNIT TYPE STRING,
GROSSWEIGHT TYPE STRING,
NETWEIGHT TYPE STRING,
WEIGHTUNIT TYPE STRING,
MANUFACTURERNUMBER TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
ISBATCHMANAGEMENTREQUIRED TYPE STRING,
PRODUCTMANUFACTURERNUMBER TYPE STRING,
ARTICLECATEGORY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPRODUCTVH_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_IPRODUCTVH_STR-MANDT sy-vline 
WA_IPRODUCTVH_STR-PRODUCT sy-vline 
WA_IPRODUCTVH_STR-PRODUCTEXTERNALID sy-vline 
WA_IPRODUCTVH_STR-INDUSTRYSECTOR sy-vline 
WA_IPRODUCTVH_STR-PRODUCTTYPE sy-vline 
WA_IPRODUCTVH_STR-PRODUCTGROUP sy-vline 
WA_IPRODUCTVH_STR-BASEUNIT sy-vline 
WA_IPRODUCTVH_STR-GROSSWEIGHT sy-vline 
WA_IPRODUCTVH_STR-NETWEIGHT sy-vline 
WA_IPRODUCTVH_STR-WEIGHTUNIT sy-vline 
WA_IPRODUCTVH_STR-MANUFACTURERNUMBER sy-vline 
WA_IPRODUCTVH_STR-AUTHORIZATIONGROUP sy-vline 
WA_IPRODUCTVH_STR-ISBATCHMANAGEMENTREQUIRED sy-vline 
WA_IPRODUCTVH_STR-PRODUCTMANUFACTURERNUMBER sy-vline 
WA_IPRODUCTVH_STR-ARTICLECATEGORY sy-vline      INTO ld_text SEPARATED BY SPACE.

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