ABAP Select data from SAP table FKK_DUNVOL_ODATA_COLLVOL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKK_DUNVOL_ODATA_COLLVOL 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_DUNVOL_ODATA_COLLVOL. 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_DUNVOL_ODATA_COLLVOL 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_DUNVOL_ODATA_COLLVOL TYPE STANDARD TABLE OF FKK_DUNVOL_ODATA_COLLVOL,
      WA_FKK_DUNVOL_ODATA_COLLVOL TYPE FKK_DUNVOL_ODATA_COLLVOL,
      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_DUNVOL_ODATA_COLLVOL> TYPE FKK_DUNVOL_ODATA_COLLVOL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_DUNVOL_ODATA_COLLVOL
*  INTO TABLE @DATA(IT_FKK_DUNVOL_ODATA_COLLVOL2).
*--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_DUNVOL_ODATA_COLLVOL INDEX 1 INTO DATA(WA_FKK_DUNVOL_ODATA_COLLVOL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_DUNVOL_ODATA_COLLVOL>-CACOLLECTIONSTRATEGY = 1.
<FKK_DUNVOL_ODATA_COLLVOL>-CACOLLECTIONSTRATEGYNAME = 1.
<FKK_DUNVOL_ODATA_COLLVOL>-CACOLLECTIONSTEP = 1.
<FKK_DUNVOL_ODATA_COLLVOL>-CACOLLECTIONSTEPNAME = 1.
<FKK_DUNVOL_ODATA_COLLVOL>-CAMASSRUNDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_DUNVOL_ODATA_COLLVOL-CAMASSRUNID, sy-vline,
  WA_FKK_DUNVOL_ODATA_COLLVOL-BUSINESSPARTNER, sy-vline,
  WA_FKK_DUNVOL_ODATA_COLLVOL-CONTRACTACCOUNT, sy-vline,
  WA_FKK_DUNVOL_ODATA_COLLVOL-CADUNNINGCOUNTER, sy-vline,
  WA_FKK_DUNVOL_ODATA_COLLVOL-CASTANDARDCOMPANYCODE, sy-vline,
  WA_FKK_DUNVOL_ODATA_COLLVOL-COMPANYCODENAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_DUNVOL_ODATA_COLLVOL 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_DUNVOL_ODATA_COLLVOL 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_DUNVOL_ODATA_COLLVOL INTO WA_FKK_DUNVOL_ODATA_COLLVOL.


*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_DUNVOL_ODATA_COLLVOL-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_DUNVOL_ODATA_COLLVOL-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_DUNVOL_ODATA_COLLVOL-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_DUNVOL_ODATA_COLLVOL-CACONTRACT.
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_DUNVOL_ODATA_COLLVOL_STR, 
CACOLLECTIONSTRATEGY TYPE STRING,
CACOLLECTIONSTRATEGYNAME TYPE STRING,
CACOLLECTIONSTEP TYPE STRING,
CACOLLECTIONSTEPNAME TYPE STRING,
CAMASSRUNDATE TYPE STRING,
CAMASSRUNID TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CADUNNINGCOUNTER TYPE STRING,
CASTANDARDCOMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
BUSINESSAREA TYPE STRING,
DIVISION TYPE STRING,
CAISSUEDATE TYPE STRING,
CADUNBALANCEINDSPCRCY TYPE STRING,
CADUNCHARGEAMOUNTINDSPCRCY TYPE STRING,
CADUNINTERESTAMOUNTINDSPCRCY TYPE STRING,
POSTALCODE TYPE STRING,
CONTRACTACCOUNTCATEGORY TYPE STRING,
CANUMBEROFDUNNINGNOTICES TYPE STRING,
CATIMEINTERVALTYPE TYPE STRING,
CATIMEINTERVALSTARTDATE TYPE STRING,
CATIMEINTERVALENDDATE TYPE STRING,
TEXT TYPE STRING,
APPSTATE TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
CASEMANTICISSUEDATECODE TYPE STRING,
CACONTRACT TYPE STRING,
CASUBAPPLICATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_DUNVOL_ODATA_COLLVOL_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_DUNVOL_ODATA_COLLVOL_STR-CACOLLECTIONSTRATEGY sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CACOLLECTIONSTRATEGYNAME sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CACOLLECTIONSTEP sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CACOLLECTIONSTEPNAME sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CAMASSRUNDATE sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CAMASSRUNID sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-BUSINESSPARTNER sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CONTRACTACCOUNT sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CADUNNINGCOUNTER sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CASTANDARDCOMPANYCODE sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-COMPANYCODENAME sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-BUSINESSAREA sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-DIVISION sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CAISSUEDATE sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CADUNBALANCEINDSPCRCY sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CADUNCHARGEAMOUNTINDSPCRCY sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CADUNINTERESTAMOUNTINDSPCRCY sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-POSTALCODE sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CONTRACTACCOUNTCATEGORY sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CANUMBEROFDUNNINGNOTICES sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CATIMEINTERVALTYPE sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CATIMEINTERVALSTARTDATE sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CATIMEINTERVALENDDATE sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-TEXT sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-APPSTATE sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-DISPLAYCURRENCY sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CASEMANTICISSUEDATECODE sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CACONTRACT sy-vline 
WA_FKK_DUNVOL_ODATA_COLLVOL_STR-CASUBAPPLICATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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