ABAP Select data from SAP table CALLOCFLOWCOSTC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CALLOCFLOWCOSTC
*  INTO TABLE @DATA(IT_CALLOCFLOWCOSTC2).
*--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_CALLOCFLOWCOSTC INDEX 1 INTO DATA(WA_CALLOCFLOWCOSTC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CALLOCFLOWCOSTC>-MANDT = 1.
<CALLOCFLOWCOSTC>-COSTCENTER = 1.
<CALLOCFLOWCOSTC>-WBSELEMENT = 1.
<CALLOCFLOWCOSTC>-ALLOCATIONCYCLENAME = 1.
<CALLOCFLOWCOSTC>-LEDGER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CALLOCFLOWCOSTC-ALLOCATIONCYCLESTARTDATE, sy-vline,
  WA_CALLOCFLOWCOSTC-ALLOCATIONACTUALPLANVARIANT, sy-vline,
  WA_CALLOCFLOWCOSTC-ALLOCATIONPOSTINGTYPE, sy-vline,
  WA_CALLOCFLOWCOSTC-GLACCOUNT, sy-vline,
  WA_CALLOCFLOWCOSTC-ALLOCATIONCYCLECATEGORY, sy-vline,
  WA_CALLOCFLOWCOSTC-FUND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CALLOCFLOWCOSTC 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_CALLOCFLOWCOSTC 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_CALLOCFLOWCOSTC INTO WA_CALLOCFLOWCOSTC.


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

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

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

*Conversion exit ALPHA, internal->external for field ALLOCATIONCYCLECATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CALLOCFLOWCOSTC-ALLOCATIONCYCLECATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CALLOCFLOWCOSTC-ALLOCATIONCYCLECATEGORY.
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_CALLOCFLOWCOSTC_STR, 
MANDT TYPE STRING,
COSTCENTER TYPE STRING,
WBSELEMENT TYPE STRING,
ALLOCATIONCYCLENAME TYPE STRING,
LEDGER TYPE STRING,
ALLOCATIONCYCLESTARTDATE TYPE STRING,
ALLOCATIONACTUALPLANVARIANT TYPE STRING,
ALLOCATIONPOSTINGTYPE TYPE STRING,
GLACCOUNT TYPE STRING,
ALLOCATIONCYCLECATEGORY TYPE STRING,
FUND TYPE STRING,
TOTALDEBITAMOUNT TYPE STRING,
TOTALCREDITAMOUNT TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
CONTROLLINGAREA TYPE STRING,
ALLOCACTUALPLANVARIANTTEXT TYPE STRING,
ALLOCATIONPOSTINGTYPETEXT TYPE STRING,
COSTCENTERNAME TYPE STRING,
GLACCOUNTNAME TYPE STRING,
WBSDESCRIPTION TYPE STRING,
ALLOCATIONCYCLENAMETEXT TYPE STRING,
LEDGERNAME TYPE STRING,
PLANNINGCATEGORYNAME TYPE STRING,
ALLOCATIONTYPE TYPE STRING,
ALLOCATIONENTITYISCENTRAL TYPE STRING,
ALLOCATIONDISPLAYCURRENCYTYPE TYPE STRING,
ORIGINCOSTCENTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CALLOCFLOWCOSTC_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_CALLOCFLOWCOSTC_STR-MANDT sy-vline 
WA_CALLOCFLOWCOSTC_STR-COSTCENTER sy-vline 
WA_CALLOCFLOWCOSTC_STR-WBSELEMENT sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONCYCLENAME sy-vline 
WA_CALLOCFLOWCOSTC_STR-LEDGER sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONCYCLESTARTDATE sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONACTUALPLANVARIANT sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONPOSTINGTYPE sy-vline 
WA_CALLOCFLOWCOSTC_STR-GLACCOUNT sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONCYCLECATEGORY sy-vline 
WA_CALLOCFLOWCOSTC_STR-FUND sy-vline 
WA_CALLOCFLOWCOSTC_STR-TOTALDEBITAMOUNT sy-vline 
WA_CALLOCFLOWCOSTC_STR-TOTALCREDITAMOUNT sy-vline 
WA_CALLOCFLOWCOSTC_STR-DISPLAYCURRENCY sy-vline 
WA_CALLOCFLOWCOSTC_STR-CHARTOFACCOUNTS sy-vline 
WA_CALLOCFLOWCOSTC_STR-CONTROLLINGAREA sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCACTUALPLANVARIANTTEXT sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONPOSTINGTYPETEXT sy-vline 
WA_CALLOCFLOWCOSTC_STR-COSTCENTERNAME sy-vline 
WA_CALLOCFLOWCOSTC_STR-GLACCOUNTNAME sy-vline 
WA_CALLOCFLOWCOSTC_STR-WBSDESCRIPTION sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONCYCLENAMETEXT sy-vline 
WA_CALLOCFLOWCOSTC_STR-LEDGERNAME sy-vline 
WA_CALLOCFLOWCOSTC_STR-PLANNINGCATEGORYNAME sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONTYPE sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONENTITYISCENTRAL sy-vline 
WA_CALLOCFLOWCOSTC_STR-ALLOCATIONDISPLAYCURRENCYTYPE sy-vline 
WA_CALLOCFLOWCOSTC_STR-ORIGINCOSTCENTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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