ABAP Select data from SAP table CCNTRLCITMPRCHST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCNTRLCITMPRCHST
*  INTO TABLE @DATA(IT_CCNTRLCITMPRCHST2).
*--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_CCNTRLCITMPRCHST INDEX 1 INTO DATA(WA_CCNTRLCITMPRCHST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCNTRLCITMPRCHST>-MANDT = 1.
<CCNTRLCITMPRCHST>-ACTIVEPURCHASINGDOCUMENT = 1.
<CCNTRLCITMPRCHST>-PURCHASINGDOCUMENTVERSION = 1.
<CCNTRLCITMPRCHST>-CENTRALPURCHASECONTRACTITEM = 1.
<CCNTRLCITMPRCHST>-PROCMTHUBPLANTUNIQUEID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCNTRLCITMPRCHST-PROCMTHUBCONTRVALIDITYUUID, sy-vline,
  WA_CCNTRLCITMPRCHST-PROCMTHUBCONTRISCURRENTVERSION, sy-vline,
  WA_CCNTRLCITMPRCHST-FORMATTEDPURCHASINGDOCITEM, sy-vline,
  WA_CCNTRLCITMPRCHST-CREATIONDATE, sy-vline,
  WA_CCNTRLCITMPRCHST-PURCHASECONTRACTTYPE, sy-vline,
  WA_CCNTRLCITMPRCHST-CONDITIONVALIDITYSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCNTRLCITMPRCHST 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_CCNTRLCITMPRCHST 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_CCNTRLCITMPRCHST INTO WA_CCNTRLCITMPRCHST.


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

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

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

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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCNTRLCITMPRCHST-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCNTRLCITMPRCHST-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_CCNTRLCITMPRCHST_STR, 
MANDT TYPE STRING,
ACTIVEPURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTVERSION TYPE STRING,
CENTRALPURCHASECONTRACTITEM TYPE STRING,
PROCMTHUBPLANTUNIQUEID TYPE STRING,
PROCMTHUBCONTRVALIDITYUUID TYPE STRING,
PROCMTHUBCONTRISCURRENTVERSION TYPE STRING,
FORMATTEDPURCHASINGDOCITEM TYPE STRING,
CREATIONDATE TYPE STRING,
PURCHASECONTRACTTYPE TYPE STRING,
CONDITIONVALIDITYSTARTDATE TYPE STRING,
CONDITIONVALIDITYENDDATE TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
PROCMTHUBCONTRBASEPRDOCCRCYAMT TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
NETAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
SUPPLIER TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
MATERIAL TYPE STRING,
PURCHASECONTRACTITEMTEXT TYPE STRING,
MATERIALGROUP TYPE STRING,
CHANGEREASONISRELEVANTFORVERS TYPE STRING,
CONDITIONCHANGEREASON TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
CREATEDBYUSER TYPE STRING,
PROCMTHUBINCOTERMSCLASSFCTN TYPE STRING,
PROCMTHUBINCOTERMS2CLASSFCTN TYPE STRING,
PAYMENTTERMS TYPE STRING,
SHIPPINGCONDITION TYPE STRING,
PROCMTHUBCOMPANYCODEGROUPINGID TYPE STRING,
CALENDARYEAR TYPE STRING,
CALENDARQUARTER TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARWEEK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCNTRLCITMPRCHST_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_CCNTRLCITMPRCHST_STR-MANDT sy-vline 
WA_CCNTRLCITMPRCHST_STR-ACTIVEPURCHASINGDOCUMENT sy-vline 
WA_CCNTRLCITMPRCHST_STR-PURCHASINGDOCUMENTVERSION sy-vline 
WA_CCNTRLCITMPRCHST_STR-CENTRALPURCHASECONTRACTITEM sy-vline 
WA_CCNTRLCITMPRCHST_STR-PROCMTHUBPLANTUNIQUEID sy-vline 
WA_CCNTRLCITMPRCHST_STR-PROCMTHUBCONTRVALIDITYUUID sy-vline 
WA_CCNTRLCITMPRCHST_STR-PROCMTHUBCONTRISCURRENTVERSION sy-vline 
WA_CCNTRLCITMPRCHST_STR-FORMATTEDPURCHASINGDOCITEM sy-vline 
WA_CCNTRLCITMPRCHST_STR-CREATIONDATE sy-vline 
WA_CCNTRLCITMPRCHST_STR-PURCHASECONTRACTTYPE sy-vline 
WA_CCNTRLCITMPRCHST_STR-CONDITIONVALIDITYSTARTDATE sy-vline 
WA_CCNTRLCITMPRCHST_STR-CONDITIONVALIDITYENDDATE sy-vline 
WA_CCNTRLCITMPRCHST_STR-DISPLAYCURRENCY sy-vline 
WA_CCNTRLCITMPRCHST_STR-PROCMTHUBCONTRBASEPRDOCCRCYAMT sy-vline 
WA_CCNTRLCITMPRCHST_STR-NETPRICEAMOUNT sy-vline 
WA_CCNTRLCITMPRCHST_STR-NETAMOUNT sy-vline 
WA_CCNTRLCITMPRCHST_STR-DOCUMENTCURRENCY sy-vline 
WA_CCNTRLCITMPRCHST_STR-SUPPLIER sy-vline 
WA_CCNTRLCITMPRCHST_STR-COMPANYCODE sy-vline 
WA_CCNTRLCITMPRCHST_STR-PURCHASINGORGANIZATION sy-vline 
WA_CCNTRLCITMPRCHST_STR-PURCHASINGGROUP sy-vline 
WA_CCNTRLCITMPRCHST_STR-MATERIAL sy-vline 
WA_CCNTRLCITMPRCHST_STR-PURCHASECONTRACTITEMTEXT sy-vline 
WA_CCNTRLCITMPRCHST_STR-MATERIALGROUP sy-vline 
WA_CCNTRLCITMPRCHST_STR-CHANGEREASONISRELEVANTFORVERS sy-vline 
WA_CCNTRLCITMPRCHST_STR-CONDITIONCHANGEREASON sy-vline 
WA_CCNTRLCITMPRCHST_STR-ORDERQUANTITYUNIT sy-vline 
WA_CCNTRLCITMPRCHST_STR-CREATEDBYUSER sy-vline 
WA_CCNTRLCITMPRCHST_STR-PROCMTHUBINCOTERMSCLASSFCTN sy-vline 
WA_CCNTRLCITMPRCHST_STR-PROCMTHUBINCOTERMS2CLASSFCTN sy-vline 
WA_CCNTRLCITMPRCHST_STR-PAYMENTTERMS sy-vline 
WA_CCNTRLCITMPRCHST_STR-SHIPPINGCONDITION sy-vline 
WA_CCNTRLCITMPRCHST_STR-PROCMTHUBCOMPANYCODEGROUPINGID sy-vline 
WA_CCNTRLCITMPRCHST_STR-CALENDARYEAR sy-vline 
WA_CCNTRLCITMPRCHST_STR-CALENDARQUARTER sy-vline 
WA_CCNTRLCITMPRCHST_STR-CALENDARMONTH sy-vline 
WA_CCNTRLCITMPRCHST_STR-CALENDARWEEK sy-vline      INTO ld_text SEPARATED BY SPACE.

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