ABAP Select data from SAP table RCNTRLPCONITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCNTRLPCONITM
*  INTO TABLE @DATA(IT_RCNTRLPCONITM2).
*--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_RCNTRLPCONITM INDEX 1 INTO DATA(WA_RCNTRLPCONITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCNTRLPCONITM>-MANDT = 1.
<RCNTRLPCONITM>-CENTRALPURCHASECONTRACT = 1.
<RCNTRLPCONITM>-CENTRALPURCHASECONTRACTITEM = 1.
<RCNTRLPCONITM>-PURCHASINGDOCUMENTITEMUNIQUEID = 1.
<RCNTRLPCONITM>-PRODUCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCNTRLPCONITM-PURCHASECONTRACTITEMTEXT, sy-vline,
  WA_RCNTRLPCONITM-CONTRACTNETPRICEAMOUNT, sy-vline,
  WA_RCNTRLPCONITM-ORDERPRICEUNIT, sy-vline,
  WA_RCNTRLPCONITM-VOLUMEUNIT, sy-vline,
  WA_RCNTRLPCONITM-ORDERQUANTITYUNIT, sy-vline,
  WA_RCNTRLPCONITM-PRODUCTGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCNTRLPCONITM 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_RCNTRLPCONITM 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_RCNTRLPCONITM INTO WA_RCNTRLPCONITM.


*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_RCNTRLPCONITM-CENTRALPURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCNTRLPCONITM-CENTRALPURCHASECONTRACT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field PURCHASINGCENTRALMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RCNTRLPCONITM-PURCHASINGCENTRALMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCNTRLPCONITM-PURCHASINGCENTRALMATERIAL.
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_RCNTRLPCONITM_STR, 
MANDT TYPE STRING,
CENTRALPURCHASECONTRACT TYPE STRING,
CENTRALPURCHASECONTRACTITEM TYPE STRING,
PURCHASINGDOCUMENTITEMUNIQUEID TYPE STRING,
PRODUCT TYPE STRING,
PURCHASECONTRACTITEMTEXT TYPE STRING,
CONTRACTNETPRICEAMOUNT TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
VOLUMEUNIT TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
PRODUCTGROUP TYPE STRING,
CUSTOMER TYPE STRING,
SUBCONTRACTOR TYPE STRING,
REFERENCEDELIVERYADDRESSID TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
GOODSRECEIPTISEXPECTED TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
MULTIPLEACCTASSGMTDISTRIBUTION TYPE STRING,
TARGETQUANTITY TYPE STRING,
TARGETAMOUNT 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,
PURGDOCPRICEDATE TYPE STRING,
PURCHASINGINFORECORDUPDATECODE TYPE STRING,
PURGDOCRELEASEORDERQUANTITY TYPE STRING,
PURGDOCORDERACKNNUMBER TYPE STRING,
PURCHASINGPRICEISESTIMATED 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,
SERVICEPERFORMER TYPE STRING,
PRODUCTTYPECODE TYPE STRING,
MATERIALTYPE TYPE STRING,
PURCHASECONTRACTITEMFORMATTED TYPE STRING,
PURCHASINGCONTRACTDELETIONCODE TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
PARTIALINVOICEDISTRIBUTION TYPE STRING,
PURCHASINGCENTRALMATERIAL TYPE STRING,
CNTRLPURCONTRITMTARGETAMOUNT TYPE STRING,
PURGDOCITMBLKRSNCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCNTRLPCONITM_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_RCNTRLPCONITM_STR-MANDT sy-vline 
WA_RCNTRLPCONITM_STR-CENTRALPURCHASECONTRACT sy-vline 
WA_RCNTRLPCONITM_STR-CENTRALPURCHASECONTRACTITEM sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASINGDOCUMENTITEMUNIQUEID sy-vline 
WA_RCNTRLPCONITM_STR-PRODUCT sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASECONTRACTITEMTEXT sy-vline 
WA_RCNTRLPCONITM_STR-CONTRACTNETPRICEAMOUNT sy-vline 
WA_RCNTRLPCONITM_STR-ORDERPRICEUNIT sy-vline 
WA_RCNTRLPCONITM_STR-VOLUMEUNIT sy-vline 
WA_RCNTRLPCONITM_STR-ORDERQUANTITYUNIT sy-vline 
WA_RCNTRLPCONITM_STR-PRODUCTGROUP sy-vline 
WA_RCNTRLPCONITM_STR-CUSTOMER sy-vline 
WA_RCNTRLPCONITM_STR-SUBCONTRACTOR sy-vline 
WA_RCNTRLPCONITM_STR-REFERENCEDELIVERYADDRESSID sy-vline 
WA_RCNTRLPCONITM_STR-PLANT sy-vline 
WA_RCNTRLPCONITM_STR-STORAGELOCATION sy-vline 
WA_RCNTRLPCONITM_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_RCNTRLPCONITM_STR-GOODSRECEIPTISEXPECTED sy-vline 
WA_RCNTRLPCONITM_STR-NETPRICEQUANTITY sy-vline 
WA_RCNTRLPCONITM_STR-MULTIPLEACCTASSGMTDISTRIBUTION sy-vline 
WA_RCNTRLPCONITM_STR-TARGETQUANTITY sy-vline 
WA_RCNTRLPCONITM_STR-TARGETAMOUNT sy-vline 
WA_RCNTRLPCONITM_STR-DOCUMENTCURRENCY sy-vline 
WA_RCNTRLPCONITM_STR-ORDPRICEUNITTOORDERUNITDNMNTR sy-vline 
WA_RCNTRLPCONITM_STR-ORDERPRICEUNITTOORDERUNITNMRTR sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_RCNTRLPCONITM_STR-SUPPLIERMATERIALNUMBER sy-vline 
WA_RCNTRLPCONITM_STR-EVALDRCPTSETTLMTISALLOWED sy-vline 
WA_RCNTRLPCONITM_STR-UNDERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_RCNTRLPCONITM_STR-PRICEISTOBEPRINTED sy-vline 
WA_RCNTRLPCONITM_STR-SUPPLIERCONFIRMATIONCONTROLKEY sy-vline 
WA_RCNTRLPCONITM_STR-OVERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_RCNTRLPCONITM_STR-UNLIMITEDOVERDELIVERYISALLOWED sy-vline 
WA_RCNTRLPCONITM_STR-INVOICEISEXPECTED sy-vline 
WA_RCNTRLPCONITM_STR-INVOICEISGOODSRECEIPTBASED sy-vline 
WA_RCNTRLPCONITM_STR-PURGDOCPRICEDATE sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASINGINFORECORDUPDATECODE sy-vline 
WA_RCNTRLPCONITM_STR-PURGDOCRELEASEORDERQUANTITY sy-vline 
WA_RCNTRLPCONITM_STR-PURGDOCORDERACKNNUMBER sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASINGPRICEISESTIMATED sy-vline 
WA_RCNTRLPCONITM_STR-ISINFOATREGISTRATION sy-vline 
WA_RCNTRLPCONITM_STR-NODAYSREMINDER1 sy-vline 
WA_RCNTRLPCONITM_STR-NODAYSREMINDER2 sy-vline 
WA_RCNTRLPCONITM_STR-NODAYSREMINDER3 sy-vline 
WA_RCNTRLPCONITM_STR-STOCKTYPE sy-vline 
WA_RCNTRLPCONITM_STR-TAXCODE sy-vline 
WA_RCNTRLPCONITM_STR-REQUIREMENTTRACKING sy-vline 
WA_RCNTRLPCONITM_STR-ISORDERACKNRQD sy-vline 
WA_RCNTRLPCONITM_STR-SHIPPINGINSTRUCTION sy-vline 
WA_RCNTRLPCONITM_STR-GOODSRECEIPTISNONVALUATED sy-vline 
WA_RCNTRLPCONITM_STR-SERVICEPERFORMER sy-vline 
WA_RCNTRLPCONITM_STR-PRODUCTTYPECODE sy-vline 
WA_RCNTRLPCONITM_STR-MATERIALTYPE sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASECONTRACTITEMFORMATTED sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASINGCONTRACTDELETIONCODE sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASEREQUISITION sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_RCNTRLPCONITM_STR-PARTIALINVOICEDISTRIBUTION sy-vline 
WA_RCNTRLPCONITM_STR-PURCHASINGCENTRALMATERIAL sy-vline 
WA_RCNTRLPCONITM_STR-CNTRLPURCONTRITMTARGETAMOUNT sy-vline 
WA_RCNTRLPCONITM_STR-PURGDOCITMBLKRSNCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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