ABAP Select data from SAP table PVCNGLABAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PVCNGLABAL
*  INTO TABLE @DATA(IT_PVCNGLABAL2).
*--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_PVCNGLABAL INDEX 1 INTO DATA(WA_PVCNGLABAL2).


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

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

ENDLOOP.

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

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


*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_PVCNGLABAL-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PVCNGLABAL-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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