ABAP Select data from SAP table PCITITEMCLFN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCITITEMCLFN
*  INTO TABLE @DATA(IT_PCITITEMCLFN2).
*--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_PCITITEMCLFN INDEX 1 INTO DATA(WA_PCITITEMCLFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCITITEMCLFN>-MANDT = 1.
<PCITITEMCLFN>-CITCLASSIFICATIONUUID = 1.
<PCITITEMCLFN>-SOURCELEDGER = 1.
<PCITITEMCLFN>-COMPANYCODE = 1.
<PCITITEMCLFN>-FISCALYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCITITEMCLFN-ACCOUNTINGDOCUMENT, sy-vline,
  WA_PCITITEMCLFN-LEDGERGLLINEITEM, sy-vline,
  WA_PCITITEMCLFN-LEDGER, sy-vline,
  WA_PCITITEMCLFN-CITREPORTINGDATE, sy-vline,
  WA_PCITITEMCLFN-CORPORATEINCOMETAXHIERARCHY, sy-vline,
  WA_PCITITEMCLFN-CITCLASSIFICATIONCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCITITEMCLFN 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_PCITITEMCLFN 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_PCITITEMCLFN INTO WA_PCITITEMCLFN.


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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PCITITEMCLFN-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCITITEMCLFN-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCITITEMCLFN-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCITITEMCLFN-PROFITCENTER.
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_PCITITEMCLFN_STR, 
MANDT TYPE STRING,
CITCLASSIFICATIONUUID TYPE STRING,
SOURCELEDGER TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
LEDGERGLLINEITEM TYPE STRING,
LEDGER TYPE STRING,
CITREPORTINGDATE TYPE STRING,
CORPORATEINCOMETAXHIERARCHY TYPE STRING,
CITCLASSIFICATIONCODE TYPE STRING,
CITITEMAMOUNTINDISPLAYCURRENCY TYPE STRING,
CURRENCY TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATEDBYUSERNAME TYPE STRING,
CHANGEDDATETIME TYPE STRING,
LASTCHANGEDBYUSERNAME TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
GLACCOUNT TYPE STRING,
ALTERNATIVEGLACCOUNT TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
DEBITCREDITCODE TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
SEGMENT TYPE STRING,
ORDERID TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTCENTER TYPE STRING,
PROFITCENTER TYPE STRING,
JOURNALENTRYAMOUNTINDSPCRCY TYPE STRING,
TOTALASSGDAMTINDISPLAYCURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCITITEMCLFN_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_PCITITEMCLFN_STR-MANDT sy-vline 
WA_PCITITEMCLFN_STR-CITCLASSIFICATIONUUID sy-vline 
WA_PCITITEMCLFN_STR-SOURCELEDGER sy-vline 
WA_PCITITEMCLFN_STR-COMPANYCODE sy-vline 
WA_PCITITEMCLFN_STR-FISCALYEAR sy-vline 
WA_PCITITEMCLFN_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PCITITEMCLFN_STR-LEDGERGLLINEITEM sy-vline 
WA_PCITITEMCLFN_STR-LEDGER sy-vline 
WA_PCITITEMCLFN_STR-CITREPORTINGDATE sy-vline 
WA_PCITITEMCLFN_STR-CORPORATEINCOMETAXHIERARCHY sy-vline 
WA_PCITITEMCLFN_STR-CITCLASSIFICATIONCODE sy-vline 
WA_PCITITEMCLFN_STR-CITITEMAMOUNTINDISPLAYCURRENCY sy-vline 
WA_PCITITEMCLFN_STR-CURRENCY sy-vline 
WA_PCITITEMCLFN_STR-CREATIONDATETIME sy-vline 
WA_PCITITEMCLFN_STR-CREATEDBYUSERNAME sy-vline 
WA_PCITITEMCLFN_STR-CHANGEDDATETIME sy-vline 
WA_PCITITEMCLFN_STR-LASTCHANGEDBYUSERNAME sy-vline 
WA_PCITITEMCLFN_STR-CHARTOFACCOUNTS sy-vline 
WA_PCITITEMCLFN_STR-GLACCOUNT sy-vline 
WA_PCITITEMCLFN_STR-ALTERNATIVEGLACCOUNT sy-vline 
WA_PCITITEMCLFN_STR-ASSIGNMENTREFERENCE sy-vline 
WA_PCITITEMCLFN_STR-DEBITCREDITCODE sy-vline 
WA_PCITITEMCLFN_STR-DOCUMENTDATE sy-vline 
WA_PCITITEMCLFN_STR-POSTINGDATE sy-vline 
WA_PCITITEMCLFN_STR-SEGMENT sy-vline 
WA_PCITITEMCLFN_STR-ORDERID sy-vline 
WA_PCITITEMCLFN_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_PCITITEMCLFN_STR-WBSELEMENTINTERNALID sy-vline 
WA_PCITITEMCLFN_STR-CONTROLLINGAREA sy-vline 
WA_PCITITEMCLFN_STR-COSTCENTER sy-vline 
WA_PCITITEMCLFN_STR-PROFITCENTER sy-vline 
WA_PCITITEMCLFN_STR-JOURNALENTRYAMOUNTINDSPCRCY sy-vline 
WA_PCITITEMCLFN_STR-TOTALASSGDAMTINDISPLAYCURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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