ABAP Select data from SAP table ICNTRLPCTRIAPI01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ICNTRLPCTRIAPI01 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 ICNTRLPCTRIAPI01. 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 ICNTRLPCTRIAPI01 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_ICNTRLPCTRIAPI01 TYPE STANDARD TABLE OF ICNTRLPCTRIAPI01,
      WA_ICNTRLPCTRIAPI01 TYPE ICNTRLPCTRIAPI01,
      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: <ICNTRLPCTRIAPI01> TYPE ICNTRLPCTRIAPI01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ICNTRLPCTRIAPI01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ICNTRLPCTRIAPI01
  INTO TABLE IT_ICNTRLPCTRIAPI01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICNTRLPCTRIAPI01
*  INTO TABLE @DATA(IT_ICNTRLPCTRIAPI012).
*--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_ICNTRLPCTRIAPI01 INDEX 1 INTO DATA(WA_ICNTRLPCTRIAPI012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ICNTRLPCTRIAPI01 ASSIGNING <ICNTRLPCTRIAPI01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICNTRLPCTRIAPI01>-MANDT = 1.
<ICNTRLPCTRIAPI01>-CENTRALPURCHASECONTRACT = 1.
<ICNTRLPCTRIAPI01>-CENTRALPURCHASECONTRACTITEM = 1.
<ICNTRLPCTRIAPI01>-PURCHASINGDOCUMENTITEMCATEGORY = 1.
<ICNTRLPCTRIAPI01>-FORMATTEDPURCHASECONTRACTITEM = 1.

ENDLOOP.

LOOP AT IT_ICNTRLPCTRIAPI01 INTO WA_ICNTRLPCTRIAPI01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICNTRLPCTRIAPI01-MATERIALGROUP, sy-vline,
  WA_ICNTRLPCTRIAPI01-PURCHASINGCENTRALMATERIAL, sy-vline,
  WA_ICNTRLPCTRIAPI01-CNTRLPURCONTRACTITEMTEXT, sy-vline,
  WA_ICNTRLPCTRIAPI01-PRODUCTTYPE, sy-vline,
  WA_ICNTRLPCTRIAPI01-NETPRICEQUANTITY, sy-vline,
  WA_ICNTRLPCTRIAPI01-ORDERPRICEUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICNTRLPCTRIAPI01 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_ICNTRLPCTRIAPI01 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_ICNTRLPCTRIAPI01 INTO WA_ICNTRLPCTRIAPI01.


*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_ICNTRLPCTRIAPI01-CENTRALPURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRLPCTRIAPI01-CENTRALPURCHASECONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PURCHASINGCENTRALMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ICNTRLPCTRIAPI01-PURCHASINGCENTRALMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRLPCTRIAPI01-PURCHASINGCENTRALMATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDERPRICEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICNTRLPCTRIAPI01-ORDERPRICEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRLPCTRIAPI01-ORDERPRICEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICNTRLPCTRIAPI01-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRLPCTRIAPI01-ORDERQUANTITYUNIT.
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_ICNTRLPCTRIAPI01_STR, 
MANDT TYPE STRING,
CENTRALPURCHASECONTRACT TYPE STRING,
CENTRALPURCHASECONTRACTITEM TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
FORMATTEDPURCHASECONTRACTITEM TYPE STRING,
MATERIALGROUP TYPE STRING,
PURCHASINGCENTRALMATERIAL TYPE STRING,
CNTRLPURCONTRACTITEMTEXT TYPE STRING,
PRODUCTTYPE TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
TARGETQUANTITY TYPE STRING,
CNTRLPURCONTRITMTARGETAMOUNT TYPE STRING,
CONTRACTNETPRICEAMOUNT TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
PURGDOCRELEASEORDERQUANTITY TYPE STRING,
ORDPRICEUNITTOORDERUNITDNMNTR TYPE STRING,
ORDERPRICEUNITTOORDERUNITNMRTR TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
NODAYSREMINDER1 TYPE STRING,
NODAYSREMINDER2 TYPE STRING,
NODAYSREMINDER3 TYPE STRING,
PURGDOCORDERACKNNUMBER TYPE STRING,
REQUIREMENTTRACKING TYPE STRING,
SUPPLIERMATERIALNUMBER TYPE STRING,
ISORDERACKNRQD TYPE STRING,
PURGDOCESTIMATEDPRICE TYPE STRING,
PRICEISTOBEPRINTED TYPE STRING,
UNDERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
OVERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
UNLIMITEDOVERDELIVERYISALLOWED TYPE STRING,
STOCKTYPE TYPE STRING,
TAXCODE TYPE STRING,
SHIPPINGINSTRUCTION TYPE STRING,
GOODSRECEIPTISEXPECTED TYPE STRING,
GOODSRECEIPTISNONVALUATED TYPE STRING,
INVOICEISEXPECTED TYPE STRING,
INVOICEISGOODSRECEIPTBASED TYPE STRING,
EVALDRCPTSETTLMTISALLOWED TYPE STRING,
PURCHASINGCONTRACTDELETIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICNTRLPCTRIAPI01_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_ICNTRLPCTRIAPI01_STR-MANDT sy-vline 
WA_ICNTRLPCTRIAPI01_STR-CENTRALPURCHASECONTRACT sy-vline 
WA_ICNTRLPCTRIAPI01_STR-CENTRALPURCHASECONTRACTITEM sy-vline 
WA_ICNTRLPCTRIAPI01_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_ICNTRLPCTRIAPI01_STR-FORMATTEDPURCHASECONTRACTITEM sy-vline 
WA_ICNTRLPCTRIAPI01_STR-MATERIALGROUP sy-vline 
WA_ICNTRLPCTRIAPI01_STR-PURCHASINGCENTRALMATERIAL sy-vline 
WA_ICNTRLPCTRIAPI01_STR-CNTRLPURCONTRACTITEMTEXT sy-vline 
WA_ICNTRLPCTRIAPI01_STR-PRODUCTTYPE sy-vline 
WA_ICNTRLPCTRIAPI01_STR-NETPRICEQUANTITY sy-vline 
WA_ICNTRLPCTRIAPI01_STR-ORDERPRICEUNIT sy-vline 
WA_ICNTRLPCTRIAPI01_STR-TARGETQUANTITY sy-vline 
WA_ICNTRLPCTRIAPI01_STR-CNTRLPURCONTRITMTARGETAMOUNT sy-vline 
WA_ICNTRLPCTRIAPI01_STR-CONTRACTNETPRICEAMOUNT sy-vline 
WA_ICNTRLPCTRIAPI01_STR-ORDERQUANTITYUNIT sy-vline 
WA_ICNTRLPCTRIAPI01_STR-PURGDOCRELEASEORDERQUANTITY sy-vline 
WA_ICNTRLPCTRIAPI01_STR-ORDPRICEUNITTOORDERUNITDNMNTR sy-vline 
WA_ICNTRLPCTRIAPI01_STR-ORDERPRICEUNITTOORDERUNITNMRTR sy-vline 
WA_ICNTRLPCTRIAPI01_STR-DOCUMENTCURRENCY sy-vline 
WA_ICNTRLPCTRIAPI01_STR-NODAYSREMINDER1 sy-vline 
WA_ICNTRLPCTRIAPI01_STR-NODAYSREMINDER2 sy-vline 
WA_ICNTRLPCTRIAPI01_STR-NODAYSREMINDER3 sy-vline 
WA_ICNTRLPCTRIAPI01_STR-PURGDOCORDERACKNNUMBER sy-vline 
WA_ICNTRLPCTRIAPI01_STR-REQUIREMENTTRACKING sy-vline 
WA_ICNTRLPCTRIAPI01_STR-SUPPLIERMATERIALNUMBER sy-vline 
WA_ICNTRLPCTRIAPI01_STR-ISORDERACKNRQD sy-vline 
WA_ICNTRLPCTRIAPI01_STR-PURGDOCESTIMATEDPRICE sy-vline 
WA_ICNTRLPCTRIAPI01_STR-PRICEISTOBEPRINTED sy-vline 
WA_ICNTRLPCTRIAPI01_STR-UNDERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_ICNTRLPCTRIAPI01_STR-OVERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_ICNTRLPCTRIAPI01_STR-UNLIMITEDOVERDELIVERYISALLOWED sy-vline 
WA_ICNTRLPCTRIAPI01_STR-STOCKTYPE sy-vline 
WA_ICNTRLPCTRIAPI01_STR-TAXCODE sy-vline 
WA_ICNTRLPCTRIAPI01_STR-SHIPPINGINSTRUCTION sy-vline 
WA_ICNTRLPCTRIAPI01_STR-GOODSRECEIPTISEXPECTED sy-vline 
WA_ICNTRLPCTRIAPI01_STR-GOODSRECEIPTISNONVALUATED sy-vline 
WA_ICNTRLPCTRIAPI01_STR-INVOICEISEXPECTED sy-vline 
WA_ICNTRLPCTRIAPI01_STR-INVOICEISGOODSRECEIPTBASED sy-vline 
WA_ICNTRLPCTRIAPI01_STR-EVALDRCPTSETTLMTISALLOWED sy-vline 
WA_ICNTRLPCTRIAPI01_STR-PURCHASINGCONTRACTDELETIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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