ABAP Select data from SAP table IWIPRHDRITMDETTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWIPRHDRITMDETTP
*  INTO TABLE @DATA(IT_IWIPRHDRITMDETTP2).
*--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_IWIPRHDRITMDETTP INDEX 1 INTO DATA(WA_IWIPRHDRITMDETTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IWIPRHDRITMDETTP>-MANDT = 1.
<IWIPRHDRITMDETTP>-WORKFLOWTASKINTERNALID = 1.
<IWIPRHDRITMDETTP>-PURCHASEREQUISITION = 1.
<IWIPRHDRITMDETTP>-PURCHASEREQUISITIONITEM = 1.
<IWIPRHDRITMDETTP>-PURREQNRELEASESTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWIPRHDRITMDETTP-PURCHASEREQUISITIONITEMTEXT, sy-vline,
  WA_IWIPRHDRITMDETTP-PURCHASINGGROUP, sy-vline,
  WA_IWIPRHDRITMDETTP-PURCHASINGGROUPNAME, sy-vline,
  WA_IWIPRHDRITMDETTP-PURREQNITEMCURRENCY, sy-vline,
  WA_IWIPRHDRITMDETTP-PURCHASEREQUISITIONPRICE, sy-vline,
  WA_IWIPRHDRITMDETTP-ACCOUNTASSIGNMENTCATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWIPRHDRITMDETTP 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_IWIPRHDRITMDETTP 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_IWIPRHDRITMDETTP INTO WA_IWIPRHDRITMDETTP.


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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field ITEMUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IWIPRHDRITMDETTP-ITEMUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWIPRHDRITMDETTP-ITEMUOM.
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_IWIPRHDRITMDETTP_STR, 
MANDT TYPE STRING,
WORKFLOWTASKINTERNALID TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
PURREQNRELEASESTATUS TYPE STRING,
PURCHASEREQUISITIONITEMTEXT TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
PURREQNITEMCURRENCY TYPE STRING,
PURCHASEREQUISITIONPRICE TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
MULTIPLEACCTASSGMTDISTRIBUTION TYPE STRING,
MATERIAL TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
PURREQNPRICEQUANTITY TYPE STRING,
ITEMNETAMOUNT TYPE STRING,
BASEUNIT TYPE STRING,
PLANT TYPE STRING,
MATERIALGROUP TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,
PROCUREMENTHUBSOURCESYSTEM TYPE STRING,
CREATEDBYUSER TYPE STRING,
COMPANYCODE TYPE STRING,
USERDESCRIPTION TYPE STRING,
SUPPLIER TYPE STRING,
FIXEDSUPPLIER TYPE STRING,
SOURCEOFSUPPLY TYPE STRING,
PURCHASEREQUISITIONTYPE TYPE STRING,
CONSUMPTIONPOSTING TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
DELIVERYDATE TYPE STRING,
EXTPLANTFORPURG TYPE STRING,
EXTPURGORGFORPURG TYPE STRING,
EXTMATERIALFORPURG TYPE STRING,
EXTCOMPANYCODEFORPURG TYPE STRING,
SUPPLIERNAME TYPE STRING,
CNSLDTNMATERIALTEXT TYPE STRING,
WORKFLOWTASKRECIPIENT TYPE STRING,
PURREQNSSPCATALOG TYPE STRING,
ACCOUNTASSIGNMENTISADDABLE TYPE STRING,
ITEMUOM TYPE STRING,
REQUISITIONERNAME TYPE STRING,
PURREQNSSPREQUESTOR TYPE STRING,
STORAGELOCATION TYPE STRING,
PRODUCTTYPECODE TYPE STRING,
EXPECTEDOVERALLLIMITAMOUNT TYPE STRING,
OVERALLLIMITAMOUNT TYPE STRING,
PURREQCREATIONDATE TYPE STRING,
PERFORMANCEPERIODSTARTDATE TYPE STRING,
PERFORMANCEPERIODENDDATE TYPE STRING,
PURCHASEREQUISITIONRELEASEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IWIPRHDRITMDETTP_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_IWIPRHDRITMDETTP_STR-MANDT sy-vline 
WA_IWIPRHDRITMDETTP_STR-WORKFLOWTASKINTERNALID sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASEREQUISITION sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURREQNRELEASESTATUS sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASEREQUISITIONITEMTEXT sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASINGGROUP sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASINGGROUPNAME sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURREQNITEMCURRENCY sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASEREQUISITIONPRICE sy-vline 
WA_IWIPRHDRITMDETTP_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_IWIPRHDRITMDETTP_STR-MULTIPLEACCTASSGMTDISTRIBUTION sy-vline 
WA_IWIPRHDRITMDETTP_STR-MATERIAL sy-vline 
WA_IWIPRHDRITMDETTP_STR-REQUESTEDQUANTITY sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURREQNPRICEQUANTITY sy-vline 
WA_IWIPRHDRITMDETTP_STR-ITEMNETAMOUNT sy-vline 
WA_IWIPRHDRITMDETTP_STR-BASEUNIT sy-vline 
WA_IWIPRHDRITMDETTP_STR-PLANT sy-vline 
WA_IWIPRHDRITMDETTP_STR-MATERIALGROUP sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASINGORGANIZATION sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASECONTRACT sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASECONTRACTITEM sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASINGINFORECORD sy-vline 
WA_IWIPRHDRITMDETTP_STR-PROCUREMENTHUBSOURCESYSTEM sy-vline 
WA_IWIPRHDRITMDETTP_STR-CREATEDBYUSER sy-vline 
WA_IWIPRHDRITMDETTP_STR-COMPANYCODE sy-vline 
WA_IWIPRHDRITMDETTP_STR-USERDESCRIPTION sy-vline 
WA_IWIPRHDRITMDETTP_STR-SUPPLIER sy-vline 
WA_IWIPRHDRITMDETTP_STR-FIXEDSUPPLIER sy-vline 
WA_IWIPRHDRITMDETTP_STR-SOURCEOFSUPPLY sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASEREQUISITIONTYPE sy-vline 
WA_IWIPRHDRITMDETTP_STR-CONSUMPTIONPOSTING sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_IWIPRHDRITMDETTP_STR-DELIVERYDATE sy-vline 
WA_IWIPRHDRITMDETTP_STR-EXTPLANTFORPURG sy-vline 
WA_IWIPRHDRITMDETTP_STR-EXTPURGORGFORPURG sy-vline 
WA_IWIPRHDRITMDETTP_STR-EXTMATERIALFORPURG sy-vline 
WA_IWIPRHDRITMDETTP_STR-EXTCOMPANYCODEFORPURG sy-vline 
WA_IWIPRHDRITMDETTP_STR-SUPPLIERNAME sy-vline 
WA_IWIPRHDRITMDETTP_STR-CNSLDTNMATERIALTEXT sy-vline 
WA_IWIPRHDRITMDETTP_STR-WORKFLOWTASKRECIPIENT sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURREQNSSPCATALOG sy-vline 
WA_IWIPRHDRITMDETTP_STR-ACCOUNTASSIGNMENTISADDABLE sy-vline 
WA_IWIPRHDRITMDETTP_STR-ITEMUOM sy-vline 
WA_IWIPRHDRITMDETTP_STR-REQUISITIONERNAME sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURREQNSSPREQUESTOR sy-vline 
WA_IWIPRHDRITMDETTP_STR-STORAGELOCATION sy-vline 
WA_IWIPRHDRITMDETTP_STR-PRODUCTTYPECODE sy-vline 
WA_IWIPRHDRITMDETTP_STR-EXPECTEDOVERALLLIMITAMOUNT sy-vline 
WA_IWIPRHDRITMDETTP_STR-OVERALLLIMITAMOUNT sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURREQCREATIONDATE sy-vline 
WA_IWIPRHDRITMDETTP_STR-PERFORMANCEPERIODSTARTDATE sy-vline 
WA_IWIPRHDRITMDETTP_STR-PERFORMANCEPERIODENDDATE sy-vline 
WA_IWIPRHDRITMDETTP_STR-PURCHASEREQUISITIONRELEASEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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