ABAP Select data from SAP table MMPUR_S_PR_ITEMFC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPUR_S_PR_ITEMFC
*  INTO TABLE @DATA(IT_MMPUR_S_PR_ITEMFC2).
*--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_MMPUR_S_PR_ITEMFC INDEX 1 INTO DATA(WA_MMPUR_S_PR_ITEMFC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPUR_S_PR_ITEMFC>-PURCHASEREQUISITION = 1.
<MMPUR_S_PR_ITEMFC>-PURCHASEREQUISITIONITEM = 1.
<MMPUR_S_PR_ITEMFC>-PURCHASEREQUISITIONTYPE = 1.
<MMPUR_S_PR_ITEMFC>-PURREQNRELEASESTATUS = 1.
<MMPUR_S_PR_ITEMFC>-RELEASECODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPUR_S_PR_ITEMFC-PURCHASINGGROUP, sy-vline,
  WA_MMPUR_S_PR_ITEMFC-CREATEDBYUSER, sy-vline,
  WA_MMPUR_S_PR_ITEMFC-LASTCHANGEDATETIME, sy-vline,
  WA_MMPUR_S_PR_ITEMFC-PURREQNREQUESTOR, sy-vline,
  WA_MMPUR_S_PR_ITEMFC-MATERIAL, sy-vline,
  WA_MMPUR_S_PR_ITEMFC-SUPPLIERMATERIALNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPUR_S_PR_ITEMFC 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_MMPUR_S_PR_ITEMFC 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_MMPUR_S_PR_ITEMFC INTO WA_MMPUR_S_PR_ITEMFC.


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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PURREQNRECEIVINGSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMPUR_S_PR_ITEMFC-PURREQNRECEIVINGSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_S_PR_ITEMFC-PURREQNRECEIVINGSUPPLIER.
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_MMPUR_S_PR_ITEMFC_STR, 
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
PURCHASEREQUISITIONTYPE TYPE STRING,
PURREQNRELEASESTATUS TYPE STRING,
RELEASECODE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
PURREQNREQUESTOR TYPE STRING,
MATERIAL TYPE STRING,
SUPPLIERMATERIALNUMBER TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
REQUIREMENTTRACK TYPE STRING,
MATERIALGROUP TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
ORDEREDQUANTITY TYPE STRING,
BASEUNIT TYPE STRING,
PURCHASEREQUISITIONPRICE TYPE STRING,
PRICEUNIT TYPE STRING,
CREATIONDATE TYPE STRING,
DELIVERYDATE TYPE STRING,
PURCHASEREQUISITIONRELEASEDATE TYPE STRING,
MATERIALGOODSRECEIPTDURATION TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
SUPPLIER TYPE STRING,
FIXEDSUPPLIER TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,
MRPCONTROLLER TYPE STRING,
RESERVATION TYPE STRING,
PURCHASEREQUISITIONISFIXED TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
PURCHASEORDERPRICETYPE TYPE STRING,
BATCHBYSUPPLIER TYPE STRING,
CUSTOMERNUM TYPE STRING,
PURREQNRECEIVINGSUPPLIER TYPE STRING,
ISSUPPLIERSUBCONTRACTOR TYPE STRING,
CURRENCY TYPE STRING,
PURORDSUPPLIERMATERIALNUMBER TYPE STRING,
MANUFACTURERPARTPROFILE TYPE STRING,
MATERIALPLANNEDDELIVERYDURN TYPE STRING,
SCHEDULELINEDELIVERYTIME TYPE STRING,
ISPURREQNBLOCKED TYPE STRING,
DUMMY_EBAN_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPUR_S_PR_ITEMFC_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_MMPUR_S_PR_ITEMFC_STR-PURCHASEREQUISITION sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASEREQUISITIONTYPE sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURREQNRELEASESTATUS sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-RELEASECODE sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASINGGROUP sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-CREATEDBYUSER sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-LASTCHANGEDATETIME sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURREQNREQUESTOR sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-MATERIAL sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-SUPPLIERMATERIALNUMBER sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PLANT sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-STORAGELOCATION sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-REQUIREMENTTRACK sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-MATERIALGROUP sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-SUPPLYINGPLANT sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-ORDEREDQUANTITY sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-BASEUNIT sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASEREQUISITIONPRICE sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PRICEUNIT sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-CREATIONDATE sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-DELIVERYDATE sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASEREQUISITIONRELEASEDATE sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-MATERIALGOODSRECEIPTDURATION sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-SUPPLIER sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-FIXEDSUPPLIER sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASINGORGANIZATION sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASECONTRACT sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASECONTRACTITEM sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASINGINFORECORD sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-MRPCONTROLLER sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-RESERVATION sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASEREQUISITIONISFIXED sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURCHASEORDERPRICETYPE sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-BATCHBYSUPPLIER sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-CUSTOMERNUM sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURREQNRECEIVINGSUPPLIER sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-ISSUPPLIERSUBCONTRACTOR sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-CURRENCY sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-PURORDSUPPLIERMATERIALNUMBER sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-MANUFACTURERPARTPROFILE sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-MATERIALPLANNEDDELIVERYDURN sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-SCHEDULELINEDELIVERYTIME sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-ISPURREQNBLOCKED sy-vline 
WA_MMPUR_S_PR_ITEMFC_STR-DUMMY_EBAN_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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