ABAP Select data from SAP table CREVVARB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CREVVARB
*  INTO TABLE @DATA(IT_CREVVARB2).
*--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_CREVVARB INDEX 1 INTO DATA(WA_CREVVARB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CREVVARB>-MANDT = 1.
<CREVVARB>-FISCALPERIOD = 1.
<CREVVARB>-SOURCELEDGER = 1.
<CREVVARB>-FISCALYEAR = 1.
<CREVVARB>-ACCOUNTINGDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CREVVARB-LEDGERGLLINEITEM, sy-vline,
  WA_CREVVARB-FINANCIALPLANNINGREQTRANSSQNC, sy-vline,
  WA_CREVVARB-FINANCIALPLANNINGDATAPACKET, sy-vline,
  WA_CREVVARB-FINANCIALPLANNINGENTRYITEM, sy-vline,
  WA_CREVVARB-GLACCOUNTHIERARCHY, sy-vline,
  WA_CREVVARB-QUANTITYTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CREVVARB 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_CREVVARB 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_CREVVARB INTO WA_CREVVARB.


*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_CREVVARB-SOURCELEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CREVVARB-SOURCELEDGER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SERVICEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CREVVARB-SERVICEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CREVVARB-SERVICEDOCUMENT.
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_CREVVARB_STR, 
MANDT TYPE STRING,
FISCALPERIOD TYPE STRING,
SOURCELEDGER TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
LEDGERGLLINEITEM TYPE STRING,
FINANCIALPLANNINGREQTRANSSQNC TYPE STRING,
FINANCIALPLANNINGDATAPACKET TYPE STRING,
FINANCIALPLANNINGENTRYITEM TYPE STRING,
GLACCOUNTHIERARCHY TYPE STRING,
QUANTITYTYPE TYPE STRING,
INPUTFISCALYEAR TYPE STRING,
INPUTPLANNINGCATEGORY TYPE STRING,
REVENUECOMPARISONVARIANT TYPE STRING,
INTERVAL1TYPE TYPE STRING,
INTERVAL2TYPE TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
INTERVAL1LINEITEMREVENUE TYPE STRING,
INTERVAL2LINEITEMREVENUE TYPE STRING,
RATIOUNIT TYPE STRING,
REVENUEDIFFERENCEAMOUNT TYPE STRING,
REVENUEDIFFERENCEPERCENT TYPE STRING,
STATUSCRITICALITY TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
LEDGER TYPE STRING,
LEDGERNAME TYPE STRING,
COUNTRY TYPE STRING,
COUNTRYNAME TYPE STRING,
SALESORGANIZATION TYPE STRING,
SALESORGANIZATIONNAME TYPE STRING,
DIVISION TYPE STRING,
DIVISIONNAME TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DISTRIBUTIONCHANNELNAME TYPE STRING,
CUSTOMER TYPE STRING,
CUSTOMERNAME TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
CUSTOMERGROUP TYPE STRING,
GLACCOUNT TYPE STRING,
PROFITCENTER TYPE STRING,
GLOBALCURRENCY TYPE STRING,
PLANNINGCATEGORY TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
BUSINESSAREA TYPE STRING,
SEGMENT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTCENTER TYPE STRING,
PLANT TYPE STRING,
VALUATIONAREA TYPE STRING,
ORGANIZATIONDIVISION TYPE STRING,
ASSETCLASS TYPE STRING,
POSTINGDATE TYPE STRING,
SUPPLIER TYPE STRING,
SALESDOCUMENT TYPE STRING,
ORDERID TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
SERVICEDOCUMENT TYPE STRING,
SERVICEDOCUMENTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CREVVARB_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_CREVVARB_STR-MANDT sy-vline 
WA_CREVVARB_STR-FISCALPERIOD sy-vline 
WA_CREVVARB_STR-SOURCELEDGER sy-vline 
WA_CREVVARB_STR-FISCALYEAR sy-vline 
WA_CREVVARB_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CREVVARB_STR-LEDGERGLLINEITEM sy-vline 
WA_CREVVARB_STR-FINANCIALPLANNINGREQTRANSSQNC sy-vline 
WA_CREVVARB_STR-FINANCIALPLANNINGDATAPACKET sy-vline 
WA_CREVVARB_STR-FINANCIALPLANNINGENTRYITEM sy-vline 
WA_CREVVARB_STR-GLACCOUNTHIERARCHY sy-vline 
WA_CREVVARB_STR-QUANTITYTYPE sy-vline 
WA_CREVVARB_STR-INPUTFISCALYEAR sy-vline 
WA_CREVVARB_STR-INPUTPLANNINGCATEGORY sy-vline 
WA_CREVVARB_STR-REVENUECOMPARISONVARIANT sy-vline 
WA_CREVVARB_STR-INTERVAL1TYPE sy-vline 
WA_CREVVARB_STR-INTERVAL2TYPE sy-vline 
WA_CREVVARB_STR-DISPLAYCURRENCY sy-vline 
WA_CREVVARB_STR-COMPANYCODECURRENCY sy-vline 
WA_CREVVARB_STR-INTERVAL1LINEITEMREVENUE sy-vline 
WA_CREVVARB_STR-INTERVAL2LINEITEMREVENUE sy-vline 
WA_CREVVARB_STR-RATIOUNIT sy-vline 
WA_CREVVARB_STR-REVENUEDIFFERENCEAMOUNT sy-vline 
WA_CREVVARB_STR-REVENUEDIFFERENCEPERCENT sy-vline 
WA_CREVVARB_STR-STATUSCRITICALITY sy-vline 
WA_CREVVARB_STR-COMPANYCODE sy-vline 
WA_CREVVARB_STR-COMPANYCODENAME sy-vline 
WA_CREVVARB_STR-LEDGER sy-vline 
WA_CREVVARB_STR-LEDGERNAME sy-vline 
WA_CREVVARB_STR-COUNTRY sy-vline 
WA_CREVVARB_STR-COUNTRYNAME sy-vline 
WA_CREVVARB_STR-SALESORGANIZATION sy-vline 
WA_CREVVARB_STR-SALESORGANIZATIONNAME sy-vline 
WA_CREVVARB_STR-DIVISION sy-vline 
WA_CREVVARB_STR-DIVISIONNAME sy-vline 
WA_CREVVARB_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CREVVARB_STR-DISTRIBUTIONCHANNELNAME sy-vline 
WA_CREVVARB_STR-CUSTOMER sy-vline 
WA_CREVVARB_STR-CUSTOMERNAME sy-vline 
WA_CREVVARB_STR-MATERIAL sy-vline 
WA_CREVVARB_STR-MATERIALNAME sy-vline 
WA_CREVVARB_STR-MATERIALGROUP sy-vline 
WA_CREVVARB_STR-MATERIALGROUPNAME sy-vline 
WA_CREVVARB_STR-CUSTOMERGROUP sy-vline 
WA_CREVVARB_STR-GLACCOUNT sy-vline 
WA_CREVVARB_STR-PROFITCENTER sy-vline 
WA_CREVVARB_STR-GLOBALCURRENCY sy-vline 
WA_CREVVARB_STR-PLANNINGCATEGORY sy-vline 
WA_CREVVARB_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_CREVVARB_STR-BUSINESSAREA sy-vline 
WA_CREVVARB_STR-SEGMENT sy-vline 
WA_CREVVARB_STR-CONTROLLINGAREA sy-vline 
WA_CREVVARB_STR-COSTCENTER sy-vline 
WA_CREVVARB_STR-PLANT sy-vline 
WA_CREVVARB_STR-VALUATIONAREA sy-vline 
WA_CREVVARB_STR-ORGANIZATIONDIVISION sy-vline 
WA_CREVVARB_STR-ASSETCLASS sy-vline 
WA_CREVVARB_STR-POSTINGDATE sy-vline 
WA_CREVVARB_STR-SUPPLIER sy-vline 
WA_CREVVARB_STR-SALESDOCUMENT sy-vline 
WA_CREVVARB_STR-ORDERID sy-vline 
WA_CREVVARB_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_CREVVARB_STR-SERVICEDOCUMENT sy-vline 
WA_CREVVARB_STR-SERVICEDOCUMENTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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