ABAP Select data from SAP table MMPUR_S_EXT_LCL_PO_ITEM 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_EXT_LCL_PO_ITEM 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_EXT_LCL_PO_ITEM. 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_EXT_LCL_PO_ITEM 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_EXT_LCL_PO_ITEM TYPE STANDARD TABLE OF MMPUR_S_EXT_LCL_PO_ITEM,
      WA_MMPUR_S_EXT_LCL_PO_ITEM TYPE MMPUR_S_EXT_LCL_PO_ITEM,
      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_EXT_LCL_PO_ITEM> TYPE MMPUR_S_EXT_LCL_PO_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPUR_S_EXT_LCL_PO_ITEM
*  INTO TABLE @DATA(IT_MMPUR_S_EXT_LCL_PO_ITEM2).
*--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_EXT_LCL_PO_ITEM INDEX 1 INTO DATA(WA_MMPUR_S_EXT_LCL_PO_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPUR_S_EXT_LCL_PO_ITEM>-PURCHASEORDER = 1.
<MMPUR_S_EXT_LCL_PO_ITEM>-PURCHASEORDERITEM = 1.
<MMPUR_S_EXT_LCL_PO_ITEM>-PURCHASEORDERCATEGORY = 1.
<MMPUR_S_EXT_LCL_PO_ITEM>-PURCHASINGDOCUMENTDELETIONCODE = 1.
<MMPUR_S_EXT_LCL_PO_ITEM>-MATERIALGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPUR_S_EXT_LCL_PO_ITEM-MATERIAL, sy-vline,
  WA_MMPUR_S_EXT_LCL_PO_ITEM-MATERIALTYPE, sy-vline,
  WA_MMPUR_S_EXT_LCL_PO_ITEM-SUPPLIERMATERIALNUMBER, sy-vline,
  WA_MMPUR_S_EXT_LCL_PO_ITEM-PURCHASEORDERITEMTEXT, sy-vline,
  WA_MMPUR_S_EXT_LCL_PO_ITEM-COMPANYCODE, sy-vline,
  WA_MMPUR_S_EXT_LCL_PO_ITEM-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPUR_S_EXT_LCL_PO_ITEM 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_EXT_LCL_PO_ITEM 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_EXT_LCL_PO_ITEM INTO WA_MMPUR_S_EXT_LCL_PO_ITEM.


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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PURCHASINGINFORECORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMPUR_S_EXT_LCL_PO_ITEM-PURCHASINGINFORECORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_S_EXT_LCL_PO_ITEM-PURCHASINGINFORECORD.
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_EXT_LCL_PO_ITEM_STR, 
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
PURCHASEORDERCATEGORY TYPE STRING,
PURCHASINGDOCUMENTDELETIONCODE TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIAL TYPE STRING,
MATERIALTYPE TYPE STRING,
SUPPLIERMATERIALNUMBER TYPE STRING,
PURCHASEORDERITEMTEXT TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
MANUALDELIVERYADDRESSID TYPE STRING,
REFERENCEDELIVERYADDRESSID TYPE STRING,
CUSTOMER TYPE STRING,
STORAGELOCATION TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
ORDERITEMQTYTOBASEQTYNMRTR TYPE STRING,
ORDERITEMQTYTOBASEQTYDNMNTR TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
ISCOMPLETELYDELIVERED TYPE STRING,
ISFINALLYINVOICED TYPE STRING,
GOODSRECEIPTISEXPECTED TYPE STRING,
INVOICEISEXPECTED TYPE STRING,
INVOICEISGOODSRECEIPTBASED TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
UNLIMITEDOVERDELIVERYISALLOWED TYPE STRING,
OVERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
UNDERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
REQUISITIONERNAME TYPE STRING,
SERVICEPACKAGE TYPE STRING,
BASEUNIT TYPE STRING,
PURCHASEORDERITEMCATEGORY TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
MULTIPLEACCTASSGMTDISTRIBUTION TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
COMMODITYCODE TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,
NETAMOUNT TYPE STRING,
TARGETAMOUNT TYPE STRING,
GROSSAMOUNT TYPE STRING,
ORDERQUANTITY TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
ORDERPRICEUNITTOORDERUNITNMRTR TYPE STRING,
ORDPRICEUNITTOORDERUNITDNMNTR TYPE STRING,
GOODSRECEIPTISNONVALUATED TYPE STRING,
TAXCODE TYPE STRING,
TAXJURISDICTION TYPE STRING,
EXPECTEDOVERALLLIMITAMOUNT TYPE STRING,
OVERALLLIMITAMOUNT TYPE STRING,
SERVICEPERFORMER TYPE STRING,
PRODUCTTYPE TYPE STRING,
TAXPROCEDURE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPUR_S_EXT_LCL_PO_ITEM_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_EXT_LCL_PO_ITEM_STR-PURCHASEORDER sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASEORDERITEM sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASEORDERCATEGORY sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASINGDOCUMENTDELETIONCODE sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-MATERIALGROUP sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-MATERIAL sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-MATERIALTYPE sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-SUPPLIERMATERIALNUMBER sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASEORDERITEMTEXT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-COMPANYCODE sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PLANT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-MANUALDELIVERYADDRESSID sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-REFERENCEDELIVERYADDRESSID sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-CUSTOMER sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-STORAGELOCATION sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-ORDERITEMQTYTOBASEQTYNMRTR sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-ORDERITEMQTYTOBASEQTYDNMNTR sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-NETPRICEQUANTITY sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-ISCOMPLETELYDELIVERED sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-ISFINALLYINVOICED sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-GOODSRECEIPTISEXPECTED sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-INVOICEISEXPECTED sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-INVOICEISGOODSRECEIPTBASED sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASECONTRACTITEM sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASECONTRACT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASEREQUISITION sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-UNLIMITEDOVERDELIVERYISALLOWED sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-OVERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-UNDERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-REQUISITIONERNAME sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-SERVICEPACKAGE sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-BASEUNIT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASEORDERITEMCATEGORY sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-ORDERPRICEUNIT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-MULTIPLEACCTASSGMTDISTRIBUTION sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-COMMODITYCODE sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PURCHASINGINFORECORD sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-NETAMOUNT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-TARGETAMOUNT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-GROSSAMOUNT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-ORDERQUANTITY sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-NETPRICEAMOUNT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-ORDERPRICEUNITTOORDERUNITNMRTR sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-ORDPRICEUNITTOORDERUNITDNMNTR sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-GOODSRECEIPTISNONVALUATED sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-TAXCODE sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-TAXJURISDICTION sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-EXPECTEDOVERALLLIMITAMOUNT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-OVERALLLIMITAMOUNT sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-SERVICEPERFORMER sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-PRODUCTTYPE sy-vline 
WA_MMPUR_S_EXT_LCL_PO_ITEM_STR-TAXPROCEDURE sy-vline      INTO ld_text SEPARATED BY SPACE.

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