ABAP Select data from SAP table IPRODNVERSSTG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPRODNVERSSTG
*  INTO TABLE @DATA(IT_IPRODNVERSSTG2).
*--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_IPRODNVERSSTG INDEX 1 INTO DATA(WA_IPRODNVERSSTG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPRODNVERSSTG>-MANDT = 1.
<IPRODNVERSSTG>-DRAFTUUID = 1.
<IPRODNVERSSTG>-MATERIAL = 1.
<IPRODNVERSSTG>-PLANT = 1.
<IPRODNVERSSTG>-PRODUCTIONVERSION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPRODNVERSSTG-PRODUCTIONVERSIONTEXT, sy-vline,
  WA_IPRODNVERSSTG-BILLOFOPERATIONSTYPE, sy-vline,
  WA_IPRODNVERSSTG-BILLOFOPERATIONSGROUP, sy-vline,
  WA_IPRODNVERSSTG-BILLOFOPERATIONSVARIANT, sy-vline,
  WA_IPRODNVERSSTG-BILLOFOPERATIONSVERSION, sy-vline,
  WA_IPRODNVERSSTG-BILLOFMATERIALCATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPRODNVERSSTG 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_IPRODNVERSSTG 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_IPRODNVERSSTG INTO WA_IPRODNVERSSTG.


*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 MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IPRODNVERSSTG-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPRODNVERSSTG-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit NUMCV, internal->external for field BILLOFMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_IPRODNVERSSTG-BILLOFMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPRODNVERSSTG-BILLOFMATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field BILLOFOPERATIONSUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IPRODNVERSSTG-BILLOFOPERATIONSUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPRODNVERSSTG-BILLOFOPERATIONSUNIT.
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_IPRODNVERSSTG_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
PRODUCTIONVERSION TYPE STRING,
PRODUCTIONVERSIONTEXT TYPE STRING,
BILLOFOPERATIONSTYPE TYPE STRING,
BILLOFOPERATIONSGROUP TYPE STRING,
BILLOFOPERATIONSVARIANT TYPE STRING,
BILLOFOPERATIONSVERSION TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
BILLOFMATERIALVARIANTUSAGE TYPE STRING,
BILLOFMATERIAL TYPE STRING,
BILLOFMATERIALVARIANT TYPE STRING,
MATERIALMINLOTSIZEQUANTITY TYPE STRING,
MATERIALMAXLOTSIZEQUANTITY TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
PRODUCTIONVERSIONISLOCKED TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
BILLOFMATERIALVERSION TYPE STRING,
PRODNRTGVERSBOMINTERNALID TYPE STRING,
BILLOFOPERATIONSUNIT TYPE STRING,
ISREADONLY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPRODNVERSSTG_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_IPRODNVERSSTG_STR-MANDT sy-vline 
WA_IPRODNVERSSTG_STR-DRAFTUUID sy-vline 
WA_IPRODNVERSSTG_STR-MATERIAL sy-vline 
WA_IPRODNVERSSTG_STR-PLANT sy-vline 
WA_IPRODNVERSSTG_STR-PRODUCTIONVERSION sy-vline 
WA_IPRODNVERSSTG_STR-PRODUCTIONVERSIONTEXT sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFOPERATIONSTYPE sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFOPERATIONSGROUP sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFOPERATIONSVARIANT sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFOPERATIONSVERSION sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFMATERIALVARIANTUSAGE sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFMATERIAL sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFMATERIALVARIANT sy-vline 
WA_IPRODNVERSSTG_STR-MATERIALMINLOTSIZEQUANTITY sy-vline 
WA_IPRODNVERSSTG_STR-MATERIALMAXLOTSIZEQUANTITY sy-vline 
WA_IPRODNVERSSTG_STR-VALIDFROM sy-vline 
WA_IPRODNVERSSTG_STR-VALIDTO sy-vline 
WA_IPRODNVERSSTG_STR-PRODUCTIONVERSIONISLOCKED sy-vline 
WA_IPRODNVERSSTG_STR-VALIDITYSTARTDATE sy-vline 
WA_IPRODNVERSSTG_STR-VALIDITYENDDATE sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFMATERIALVERSION sy-vline 
WA_IPRODNVERSSTG_STR-PRODNRTGVERSBOMINTERNALID sy-vline 
WA_IPRODNVERSSTG_STR-BILLOFOPERATIONSUNIT sy-vline 
WA_IPRODNVERSSTG_STR-ISREADONLY sy-vline      INTO ld_text SEPARATED BY SPACE.

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