ABAP Select data from SAP table FKK_WORKLIST_ODATA_RECEIVABLES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_WORKLIST_ODATA_RECEIVABLES
*  INTO TABLE @DATA(IT_FKK_WORKLIST_ODATA_RECEIVABLES2).
*--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_FKK_WORKLIST_ODATA_RECEIVABLES INDEX 1 INTO DATA(WA_FKK_WORKLIST_ODATA_RECEIVABLES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_WORKLIST_ODATA_RECEIVABLES>-GENERATED_ID = 1.
<FKK_WORKLIST_ODATA_RECEIVABLES>-AMOUNTINDISPLAYCURRENCY = 1.
<FKK_WORKLIST_ODATA_RECEIVABLES>-NUMBEROFITEMS = 1.
<FKK_WORKLIST_ODATA_RECEIVABLES>-BALANCEAMOUNTINDISPLAYCURRENCY = 1.
<FKK_WORKLIST_ODATA_RECEIVABLES>-DEBITAMOUNTINDISPLAYCRCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_WORKLIST_ODATA_RECEIVABLES-CREDITAMOUNTINDISPLAYCRCY, sy-vline,
  WA_FKK_WORKLIST_ODATA_RECEIVABLES-CAWORKLISTPROCESSINGSTATE, sy-vline,
  WA_FKK_WORKLIST_ODATA_RECEIVABLES-CAWORKLISTPROCESSINGSTATETEXT, sy-vline,
  WA_FKK_WORKLIST_ODATA_RECEIVABLES-WORKLISTCREATIONDATE, sy-vline,
  WA_FKK_WORKLIST_ODATA_RECEIVABLES-WORKLISTCREATIONTIME, sy-vline,
  WA_FKK_WORKLIST_ODATA_RECEIVABLES-BUSINESSPARTNER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_WORKLIST_ODATA_RECEIVABLES 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_FKK_WORKLIST_ODATA_RECEIVABLES 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_FKK_WORKLIST_ODATA_RECEIVABLES INTO WA_FKK_WORKLIST_ODATA_RECEIVABLES.


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

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

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_WORKLIST_ODATA_RECEIVABLES-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_WORKLIST_ODATA_RECEIVABLES-SEGMENT.
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_FKK_WORKLIST_ODATA_RECEIVABLES_STR, 
GENERATED_ID TYPE STRING,
AMOUNTINDISPLAYCURRENCY TYPE STRING,
NUMBEROFITEMS TYPE STRING,
BALANCEAMOUNTINDISPLAYCURRENCY TYPE STRING,
DEBITAMOUNTINDISPLAYCRCY TYPE STRING,
CREDITAMOUNTINDISPLAYCRCY TYPE STRING,
CAWORKLISTPROCESSINGSTATE TYPE STRING,
CAWORKLISTPROCESSINGSTATETEXT TYPE STRING,
WORKLISTCREATIONDATE TYPE STRING,
WORKLISTCREATIONTIME TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CADOCUMENTNUMBER TYPE STRING,
CAREPETITIONITEMNUMBER TYPE STRING,
CABPITEMNUMBER TYPE STRING,
CASUBITEMNUMBER TYPE STRING,
COMPANYCODE TYPE STRING,
CONTRACTACCOUNTCATEGORY TYPE STRING,
LASTNAME TYPE STRING,
FIRSTNAME TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CAGROUPBYKEY TYPE STRING,
CANETDUEDATE TYPE STRING,
BUSINESSAREA TYPE STRING,
CAMAINTRANSACTION TYPE STRING,
CADOUBTFULORVALUEADJMTCODE TYPE STRING,
SEGMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_WORKLIST_ODATA_RECEIVABLES_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_FKK_WORKLIST_ODATA_RECEIVABLES_STR-GENERATED_ID sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-AMOUNTINDISPLAYCURRENCY sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-NUMBEROFITEMS sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-BALANCEAMOUNTINDISPLAYCURRENCY sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-DEBITAMOUNTINDISPLAYCRCY sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CREDITAMOUNTINDISPLAYCRCY sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CAWORKLISTPROCESSINGSTATE sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CAWORKLISTPROCESSINGSTATETEXT sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-WORKLISTCREATIONDATE sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-WORKLISTCREATIONTIME sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-BUSINESSPARTNER sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CADOCUMENTNUMBER sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CAREPETITIONITEMNUMBER sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CABPITEMNUMBER sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CASUBITEMNUMBER sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-COMPANYCODE sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CONTRACTACCOUNTCATEGORY sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-LASTNAME sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-FIRSTNAME sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-TRANSACTIONCURRENCY sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CAGROUPBYKEY sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CANETDUEDATE sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-BUSINESSAREA sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CAMAINTRANSACTION sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-CADOUBTFULORVALUEADJMTCODE sy-vline 
WA_FKK_WORKLIST_ODATA_RECEIVABLES_STR-SEGMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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