ABAP Select data from SAP table CVCNGLABAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CVCNGLABAL
*  INTO TABLE @DATA(IT_CVCNGLABAL2).
*--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_CVCNGLABAL INDEX 1 INTO DATA(WA_CVCNGLABAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CVCNGLABAL>-MANDT = 1.
<CVCNGLABAL>-COMPANYCODE = 1.
<CVCNGLABAL>-FISCALYEAR = 1.
<CVCNGLABAL>-LEDGER = 1.
<CVCNGLABAL>-ACCOUNTINGDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CVCNGLABAL-LEDGERGLLINEITEM, sy-vline,
  WA_CVCNGLABAL-GLACCTLINEDESCRIPTION, sy-vline,
  WA_CVCNGLABAL-FISCALPERIOD, sy-vline,
  WA_CVCNGLABAL-GLACCOUNT, sy-vline,
  WA_CVCNGLABAL-POSTINGDATE, sy-vline,
  WA_CVCNGLABAL-GLACCOUNTINFO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CVCNGLABAL 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_CVCNGLABAL 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_CVCNGLABAL INTO WA_CVCNGLABAL.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SALESORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CVCNGLABAL-SALESORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVCNGLABAL-SALESORDER.
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_CVCNGLABAL_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
LEDGER TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
LEDGERGLLINEITEM TYPE STRING,
GLACCTLINEDESCRIPTION TYPE STRING,
FISCALPERIOD TYPE STRING,
GLACCOUNT TYPE STRING,
POSTINGDATE TYPE STRING,
GLACCOUNTINFO TYPE STRING,
PROFITCENTER TYPE STRING,
BUSINESSAREA TYPE STRING,
SEGMENT TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
DEBITAMOUNTINTRANSCRCY TYPE STRING,
CREDITAMOUNTINTRANSCRCY TYPE STRING,
DOCUMENTDATE TYPE STRING,
DEBITAMOUNTINDISPLAYCRCY TYPE STRING,
CREDITAMOUNTINDISPLAYCRCY TYPE STRING,
AMOUNTINDISPLAYCURRENCY TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
CONTROLLINGAREA TYPE STRING,
ACCOUNTINGDOCUMENTCATEGORY TYPE STRING,
EXCHANGERATE TYPE STRING,
FUNCTIONALAREA TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
VALUEDATE TYPE STRING,
GLACCTBALDATESORTSQNC TYPE STRING,
GLACCTBALPERDSORTSQNC TYPE STRING,
DOCUMENTHEADERTEXT TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
GLACCOUNTPERIOD TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
GLACCOUNTGROUP TYPE STRING,
ACCOUNTISMARKEDFORDELETION TYPE STRING,
COSTCENTER TYPE STRING,
ACCOUNTINGDOCCREATEDBYUSER TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
SALESORDER TYPE STRING,
DOCUMENTITEMTEXT TYPE STRING,
ALTERNATIVEREFERENCEDOCUMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CVCNGLABAL_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_CVCNGLABAL_STR-MANDT sy-vline 
WA_CVCNGLABAL_STR-COMPANYCODE sy-vline 
WA_CVCNGLABAL_STR-FISCALYEAR sy-vline 
WA_CVCNGLABAL_STR-LEDGER sy-vline 
WA_CVCNGLABAL_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CVCNGLABAL_STR-LEDGERGLLINEITEM sy-vline 
WA_CVCNGLABAL_STR-GLACCTLINEDESCRIPTION sy-vline 
WA_CVCNGLABAL_STR-FISCALPERIOD sy-vline 
WA_CVCNGLABAL_STR-GLACCOUNT sy-vline 
WA_CVCNGLABAL_STR-POSTINGDATE sy-vline 
WA_CVCNGLABAL_STR-GLACCOUNTINFO sy-vline 
WA_CVCNGLABAL_STR-PROFITCENTER sy-vline 
WA_CVCNGLABAL_STR-BUSINESSAREA sy-vline 
WA_CVCNGLABAL_STR-SEGMENT sy-vline 
WA_CVCNGLABAL_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_CVCNGLABAL_STR-DEBITAMOUNTINTRANSCRCY sy-vline 
WA_CVCNGLABAL_STR-CREDITAMOUNTINTRANSCRCY sy-vline 
WA_CVCNGLABAL_STR-DOCUMENTDATE sy-vline 
WA_CVCNGLABAL_STR-DEBITAMOUNTINDISPLAYCRCY sy-vline 
WA_CVCNGLABAL_STR-CREDITAMOUNTINDISPLAYCRCY sy-vline 
WA_CVCNGLABAL_STR-AMOUNTINDISPLAYCURRENCY sy-vline 
WA_CVCNGLABAL_STR-DISPLAYCURRENCY sy-vline 
WA_CVCNGLABAL_STR-TRANSACTIONCURRENCY sy-vline 
WA_CVCNGLABAL_STR-ASSIGNMENTREFERENCE sy-vline 
WA_CVCNGLABAL_STR-CONTROLLINGAREA sy-vline 
WA_CVCNGLABAL_STR-ACCOUNTINGDOCUMENTCATEGORY sy-vline 
WA_CVCNGLABAL_STR-EXCHANGERATE sy-vline 
WA_CVCNGLABAL_STR-FUNCTIONALAREA sy-vline 
WA_CVCNGLABAL_STR-REFERENCEDOCUMENT sy-vline 
WA_CVCNGLABAL_STR-VALUEDATE sy-vline 
WA_CVCNGLABAL_STR-GLACCTBALDATESORTSQNC sy-vline 
WA_CVCNGLABAL_STR-GLACCTBALPERDSORTSQNC sy-vline 
WA_CVCNGLABAL_STR-DOCUMENTHEADERTEXT sy-vline 
WA_CVCNGLABAL_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_CVCNGLABAL_STR-GLACCOUNTPERIOD sy-vline 
WA_CVCNGLABAL_STR-CHARTOFACCOUNTS sy-vline 
WA_CVCNGLABAL_STR-GLACCOUNTGROUP sy-vline 
WA_CVCNGLABAL_STR-ACCOUNTISMARKEDFORDELETION sy-vline 
WA_CVCNGLABAL_STR-COSTCENTER sy-vline 
WA_CVCNGLABAL_STR-ACCOUNTINGDOCCREATEDBYUSER sy-vline 
WA_CVCNGLABAL_STR-AUTHORIZATIONGROUP sy-vline 
WA_CVCNGLABAL_STR-SALESORDER sy-vline 
WA_CVCNGLABAL_STR-DOCUMENTITEMTEXT sy-vline 
WA_CVCNGLABAL_STR-ALTERNATIVEREFERENCEDOCUMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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