ABAP Select data from SAP table IWIPURREQNITMDET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWIPURREQNITMDET
*  INTO TABLE @DATA(IT_IWIPURREQNITMDET2).
*--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_IWIPURREQNITMDET INDEX 1 INTO DATA(WA_IWIPURREQNITMDET2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWIPURREQNITMDET-PURCHASEREQUISITIONITEMTEXT, sy-vline,
  WA_IWIPURREQNITMDET-ACCOUNTASSIGNMENTCATEGORY, sy-vline,
  WA_IWIPURREQNITMDET-MATERIAL, sy-vline,
  WA_IWIPURREQNITMDET-REQUESTEDQUANTITY, sy-vline,
  WA_IWIPURREQNITMDET-BASEUNIT, sy-vline,
  WA_IWIPURREQNITMDET-ITEMUOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWIPURREQNITMDET 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_IWIPURREQNITMDET 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_IWIPURREQNITMDET INTO WA_IWIPURREQNITMDET.


*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_IWIPURREQNITMDET-PURCHASEREQUISITION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWIPURREQNITMDET-PURCHASEREQUISITION.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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