ABAP Select data from SAP table MMPUR_S_CCTR_API_ITEM_MODIFY 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_CCTR_API_ITEM_MODIFY 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_CCTR_API_ITEM_MODIFY. 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_CCTR_API_ITEM_MODIFY 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_CCTR_API_ITEM_MODIFY TYPE STANDARD TABLE OF MMPUR_S_CCTR_API_ITEM_MODIFY,
      WA_MMPUR_S_CCTR_API_ITEM_MODIFY TYPE MMPUR_S_CCTR_API_ITEM_MODIFY,
      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_CCTR_API_ITEM_MODIFY> TYPE MMPUR_S_CCTR_API_ITEM_MODIFY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPUR_S_CCTR_API_ITEM_MODIFY
*  INTO TABLE @DATA(IT_MMPUR_S_CCTR_API_ITEM_MODIFY2).
*--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_CCTR_API_ITEM_MODIFY INDEX 1 INTO DATA(WA_MMPUR_S_CCTR_API_ITEM_MODIFY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPUR_S_CCTR_API_ITEM_MODIFY>-ITEM = 1.
<MMPUR_S_CCTR_API_ITEM_MODIFY>-CENTRALPURCHASECONTRACTITEM = 1.
<MMPUR_S_CCTR_API_ITEM_MODIFY>-CENTRALPURCHASECONTRACT = 1.
<MMPUR_S_CCTR_API_ITEM_MODIFY>-PURCHASINGCENTRALMATERIAL = 1.
<MMPUR_S_CCTR_API_ITEM_MODIFY>-CNTRLPURCONTRACTITEMTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPUR_S_CCTR_API_ITEM_MODIFY-CONTRACTNETPRICEAMOUNT, sy-vline,
  WA_MMPUR_S_CCTR_API_ITEM_MODIFY-ORDERPRICEUNIT, sy-vline,
  WA_MMPUR_S_CCTR_API_ITEM_MODIFY-ORDERQUANTITYUNIT, sy-vline,
  WA_MMPUR_S_CCTR_API_ITEM_MODIFY-MATERIALGROUP, sy-vline,
  WA_MMPUR_S_CCTR_API_ITEM_MODIFY-REFERENCEDELIVERYADDRESSID, sy-vline,
  WA_MMPUR_S_CCTR_API_ITEM_MODIFY-MANUALDELIVERYADDRESSID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPUR_S_CCTR_API_ITEM_MODIFY 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_CCTR_API_ITEM_MODIFY 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_CCTR_API_ITEM_MODIFY INTO WA_MMPUR_S_CCTR_API_ITEM_MODIFY.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field MANUALDELIVERYADDRESSID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMPUR_S_CCTR_API_ITEM_MODIFY-MANUALDELIVERYADDRESSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_S_CCTR_API_ITEM_MODIFY-MANUALDELIVERYADDRESSID.
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_CCTR_API_ITEM_MODIFY_STR, 
ITEM TYPE STRING,
CENTRALPURCHASECONTRACTITEM TYPE STRING,
CENTRALPURCHASECONTRACT TYPE STRING,
PURCHASINGCENTRALMATERIAL TYPE STRING,
CNTRLPURCONTRACTITEMTEXT TYPE STRING,
CONTRACTNETPRICEAMOUNT TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
MATERIALGROUP TYPE STRING,
REFERENCEDELIVERYADDRESSID TYPE STRING,
MANUALDELIVERYADDRESSID TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
GOODSRECEIPTISEXPECTED TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
MULTIPLEACCTASSGMTDISTRIBUTION TYPE STRING,
TARGETQUANTITY TYPE STRING,
CNTRLPURCONTRITMTARGETAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
ORDPRICEUNITTOORDERUNITDNMNTR TYPE STRING,
ORDERPRICEUNITTOORDERUNITNMRTR TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
SUPPLIERMATERIALNUMBER TYPE STRING,
EVALDRCPTSETTLMTISALLOWED TYPE STRING,
UNDERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
PRICEISTOBEPRINTED TYPE STRING,
SUPPLIERCONFIRMATIONCONTROLKEY TYPE STRING,
OVERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
UNLIMITEDOVERDELIVERYISALLOWED TYPE STRING,
INVOICEISEXPECTED TYPE STRING,
INVOICEISGOODSRECEIPTBASED TYPE STRING,
PURGDOCORDERACKNNUMBER TYPE STRING,
ISINFOATREGISTRATION TYPE STRING,
NODAYSREMINDER1 TYPE STRING,
NODAYSREMINDER2 TYPE STRING,
NODAYSREMINDER3 TYPE STRING,
STOCKTYPE TYPE STRING,
TAXCODE TYPE STRING,
REQUIREMENTTRACKING TYPE STRING,
ISORDERACKNRQD TYPE STRING,
SHIPPINGINSTRUCTION TYPE STRING,
GOODSRECEIPTISNONVALUATED TYPE STRING,
PRODUCTTYPE TYPE STRING,
ISDELETED TYPE STRING,
PURGDOCRELEASEORDERQUANTITY TYPE STRING,
PURCHASINGPRICEISESTIMATED TYPE STRING,
REFERENCECONTRACTITEM TYPE STRING,
OUTLINEAGRMTITMISBLOCKED TYPE STRING,
PURGDOCITMBLKRSNCODE TYPE STRING,
DUMMY_EKPO_INCL_EEW_PS TYPE STRING,
ITEM_DISTRIBUTION TYPE STRING,
NOTES TYPE STRING,
COMMODITY TYPE STRING,
ITEM_CONDITIONS TYPE STRING,
CONDITION_SCALES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPUR_S_CCTR_API_ITEM_MODIFY_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_CCTR_API_ITEM_MODIFY_STR-ITEM sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-CENTRALPURCHASECONTRACTITEM sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-CENTRALPURCHASECONTRACT sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-PURCHASINGCENTRALMATERIAL sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-CNTRLPURCONTRACTITEMTEXT sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-CONTRACTNETPRICEAMOUNT sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ORDERPRICEUNIT sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ORDERQUANTITYUNIT sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-MATERIALGROUP sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-REFERENCEDELIVERYADDRESSID sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-MANUALDELIVERYADDRESSID sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-GOODSRECEIPTISEXPECTED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-NETPRICEQUANTITY sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-MULTIPLEACCTASSGMTDISTRIBUTION sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-TARGETQUANTITY sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-CNTRLPURCONTRITMTARGETAMOUNT sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-DOCUMENTCURRENCY sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ORDPRICEUNITTOORDERUNITDNMNTR sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ORDERPRICEUNITTOORDERUNITNMRTR sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-SUPPLIERMATERIALNUMBER sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-EVALDRCPTSETTLMTISALLOWED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-UNDERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-PRICEISTOBEPRINTED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-SUPPLIERCONFIRMATIONCONTROLKEY sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-OVERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-UNLIMITEDOVERDELIVERYISALLOWED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-INVOICEISEXPECTED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-INVOICEISGOODSRECEIPTBASED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-PURGDOCORDERACKNNUMBER sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ISINFOATREGISTRATION sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-NODAYSREMINDER1 sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-NODAYSREMINDER2 sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-NODAYSREMINDER3 sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-STOCKTYPE sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-TAXCODE sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-REQUIREMENTTRACKING sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ISORDERACKNRQD sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-SHIPPINGINSTRUCTION sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-GOODSRECEIPTISNONVALUATED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-PRODUCTTYPE sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ISDELETED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-PURGDOCRELEASEORDERQUANTITY sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-PURCHASINGPRICEISESTIMATED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-REFERENCECONTRACTITEM sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-OUTLINEAGRMTITMISBLOCKED sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-PURGDOCITMBLKRSNCODE sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-DUMMY_EKPO_INCL_EEW_PS sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ITEM_DISTRIBUTION sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-NOTES sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-COMMODITY sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-ITEM_CONDITIONS sy-vline 
WA_MMPUR_S_CCTR_API_ITEM_MODIFY_STR-CONDITION_SCALES sy-vline      INTO ld_text SEPARATED BY SPACE.

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