ABAP Select data from SAP table SPAOC_TRV_DESTINATION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SPAOC_TRV_DESTINATION
*  INTO TABLE @DATA(IT_SPAOC_TRV_DESTINATION2).
*--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_SPAOC_TRV_DESTINATION INDEX 1 INTO DATA(WA_SPAOC_TRV_DESTINATION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SPAOC_TRV_DESTINATION>-DESTINATIONID = 1.
<SPAOC_TRV_DESTINATION>-TRAVELANDEXPENSEHEADERID = 1.
<SPAOC_TRV_DESTINATION>-DESTINATIONTYPE = 1.
<SPAOC_TRV_DESTINATION>-BEGINNINGDATE = 1.
<SPAOC_TRV_DESTINATION>-REASON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SPAOC_TRV_DESTINATION-ITINERARYNUMBERID, sy-vline,
  WA_SPAOC_TRV_DESTINATION-NONIGHT, sy-vline,
  WA_SPAOC_TRV_DESTINATION-PERDIEMREGION, sy-vline,
  WA_SPAOC_TRV_DESTINATION-ADDRESS, sy-vline,
  WA_SPAOC_TRV_DESTINATION-FULLNAME, sy-vline,
  WA_SPAOC_TRV_DESTINATION-CITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SPAOC_TRV_DESTINATION 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_SPAOC_TRV_DESTINATION 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_SPAOC_TRV_DESTINATION INTO WA_SPAOC_TRV_DESTINATION.


*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 CITYCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SPAOC_TRV_DESTINATION-CITYCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SPAOC_TRV_DESTINATION-CITYCODE.
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_SPAOC_TRV_DESTINATION_STR, 
DESTINATIONID TYPE STRING,
TRAVELANDEXPENSEHEADERID TYPE STRING,
DESTINATIONTYPE TYPE STRING,
BEGINNINGDATE TYPE STRING,
REASON TYPE STRING,
ITINERARYNUMBERID TYPE STRING,
NONIGHT TYPE STRING,
PERDIEMREGION TYPE STRING,
ADDRESS TYPE STRING,
FULLNAME TYPE STRING,
CITY TYPE STRING,
DISTRICT TYPE STRING,
POSTALCODE TYPE STRING,
CITYCODE TYPE STRING,
STREETNAME TYPE STRING,
STREETNUMBER TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
LOCATION TYPE STRING,
COUNTRYDESCRIPTION TYPE STRING,
REGIONDESCRIPTION TYPE STRING,
FULLNAME_FC TYPE STRING,
CITY_FC TYPE STRING,
DISTRICT_FC TYPE STRING,
POSTALCODE_FC TYPE STRING,
CITYCODE_FC TYPE STRING,
STREETNAME_FC TYPE STRING,
STREETNUMBER_FC TYPE STRING,
COUNTRY_FC TYPE STRING,
REGION_FC TYPE STRING,
LOCATION_FC TYPE STRING,
ENTERPRISETYPE TYPE STRING,
STATUTORYTYPE TYPE STRING,
ACTIVITYTYPE TYPE STRING,
ENTERPRISETYPEDESCRIPTION TYPE STRING,
PERDIEMREGIONDESCRIPTION TYPE STRING,
STATUTORYTYPEDESCRIPTION TYPE STRING,
ACTIVITYTYPEDESCRIPTION TYPE STRING,
COMMUNITYDESCRIPTION TYPE STRING,
COMMUNITYID TYPE STRING,
REASON_FC TYPE STRING,
ENTERPRISETYPE_FC TYPE STRING,
STATUTORYTYPE_FC TYPE STRING,
ACTIVITYTYPE_FC TYPE STRING,
NONIGHT_FC TYPE STRING,
BEGINNINGDATE_FC TYPE STRING,
PERDIEMREGION_FC TYPE STRING,
ITINERARYNUMBERID_FC TYPE STRING,
COMMUNITY_FC TYPE STRING,
DUMMY_EXPENSE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SPAOC_TRV_DESTINATION_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_SPAOC_TRV_DESTINATION_STR-DESTINATIONID sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-TRAVELANDEXPENSEHEADERID sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-DESTINATIONTYPE sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-BEGINNINGDATE sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-REASON sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-ITINERARYNUMBERID sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-NONIGHT sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-PERDIEMREGION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-ADDRESS sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-FULLNAME sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-CITY sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-DISTRICT sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-POSTALCODE sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-CITYCODE sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-STREETNAME sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-STREETNUMBER sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-COUNTRY sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-REGION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-LOCATION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-COUNTRYDESCRIPTION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-REGIONDESCRIPTION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-FULLNAME_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-CITY_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-DISTRICT_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-POSTALCODE_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-CITYCODE_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-STREETNAME_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-STREETNUMBER_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-COUNTRY_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-REGION_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-LOCATION_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-ENTERPRISETYPE sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-STATUTORYTYPE sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-ACTIVITYTYPE sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-ENTERPRISETYPEDESCRIPTION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-PERDIEMREGIONDESCRIPTION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-STATUTORYTYPEDESCRIPTION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-ACTIVITYTYPEDESCRIPTION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-COMMUNITYDESCRIPTION sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-COMMUNITYID sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-REASON_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-ENTERPRISETYPE_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-STATUTORYTYPE_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-ACTIVITYTYPE_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-NONIGHT_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-BEGINNINGDATE_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-PERDIEMREGION_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-ITINERARYNUMBERID_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-COMMUNITY_FC sy-vline 
WA_SPAOC_TRV_DESTINATION_STR-DUMMY_EXPENSE sy-vline      INTO ld_text SEPARATED BY SPACE.

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