ABAP Select data from SAP table CCWFREL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCWFREL
*  INTO TABLE @DATA(IT_CCWFREL2).
*--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_CCWFREL INDEX 1 INTO DATA(WA_CCWFREL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCWFREL>-MANDT = 1.
<CCWFREL>-CONDITIONCONTRACT = 1.
<CCWFREL>-DOCUMENTTITLE = 1.
<CCWFREL>-DATAPOINT02 = 1.
<CCWFREL>-CNDNCONTRTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCWFREL-DATAPOINT03, sy-vline,
  WA_CCWFREL-CUSTOMER, sy-vline,
  WA_CCWFREL-CUSTOMERNAME, sy-vline,
  WA_CCWFREL-SUPPLIER, sy-vline,
  WA_CCWFREL-SUPPLIERNAME, sy-vline,
  WA_CCWFREL-CNDNCONTRVALIDFROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCWFREL 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_CCWFREL 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_CCWFREL INTO WA_CCWFREL.


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

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

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

*Conversion exit ALPHA, internal->external for field PRIORSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCWFREL-PRIORSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCWFREL-PRIORSUPPLIER.
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_CCWFREL_STR, 
MANDT TYPE STRING,
CONDITIONCONTRACT TYPE STRING,
DOCUMENTTITLE TYPE STRING,
DATAPOINT02 TYPE STRING,
CNDNCONTRTYPE TYPE STRING,
DATAPOINT03 TYPE STRING,
CUSTOMER TYPE STRING,
CUSTOMERNAME TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
CNDNCONTRVALIDFROM TYPE STRING,
CNDNCONTRVALIDTO TYPE STRING,
EXTERNALDOCUMENTREFERENCEID TYPE STRING,
CNDNCONTRISINACTIVE TYPE STRING,
CNDNCONTRISINACTIVENAME TYPE STRING,
CREATEDBYUSER TYPE STRING,
USERFULLNAME TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
SALESORGANIZATION TYPE STRING,
SALESORGANIZATIONNAME TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DISTRIBUTIONCHANNELNAME TYPE STRING,
DIVISION TYPE STRING,
DIVISIONNAME TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
PRIORSUPPLIER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCWFREL_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_CCWFREL_STR-MANDT sy-vline 
WA_CCWFREL_STR-CONDITIONCONTRACT sy-vline 
WA_CCWFREL_STR-DOCUMENTTITLE sy-vline 
WA_CCWFREL_STR-DATAPOINT02 sy-vline 
WA_CCWFREL_STR-CNDNCONTRTYPE sy-vline 
WA_CCWFREL_STR-DATAPOINT03 sy-vline 
WA_CCWFREL_STR-CUSTOMER sy-vline 
WA_CCWFREL_STR-CUSTOMERNAME sy-vline 
WA_CCWFREL_STR-SUPPLIER sy-vline 
WA_CCWFREL_STR-SUPPLIERNAME sy-vline 
WA_CCWFREL_STR-CNDNCONTRVALIDFROM sy-vline 
WA_CCWFREL_STR-CNDNCONTRVALIDTO sy-vline 
WA_CCWFREL_STR-EXTERNALDOCUMENTREFERENCEID sy-vline 
WA_CCWFREL_STR-CNDNCONTRISINACTIVE sy-vline 
WA_CCWFREL_STR-CNDNCONTRISINACTIVENAME sy-vline 
WA_CCWFREL_STR-CREATEDBYUSER sy-vline 
WA_CCWFREL_STR-USERFULLNAME sy-vline 
WA_CCWFREL_STR-CREATIONDATE sy-vline 
WA_CCWFREL_STR-LASTCHANGEDBYUSER sy-vline 
WA_CCWFREL_STR-SALESORGANIZATION sy-vline 
WA_CCWFREL_STR-SALESORGANIZATIONNAME sy-vline 
WA_CCWFREL_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CCWFREL_STR-DISTRIBUTIONCHANNELNAME sy-vline 
WA_CCWFREL_STR-DIVISION sy-vline 
WA_CCWFREL_STR-DIVISIONNAME sy-vline 
WA_CCWFREL_STR-PURCHASINGGROUP sy-vline 
WA_CCWFREL_STR-PURCHASINGGROUPNAME sy-vline 
WA_CCWFREL_STR-PURCHASINGORGANIZATION sy-vline 
WA_CCWFREL_STR-PURCHASINGORGANIZATIONNAME sy-vline 
WA_CCWFREL_STR-COMPANYCODE sy-vline 
WA_CCWFREL_STR-COMPANYCODENAME sy-vline 
WA_CCWFREL_STR-PRIORSUPPLIER sy-vline      INTO ld_text SEPARATED BY SPACE.

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