ABAP Select data from SAP table MTR_S_DESTINATION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MTR_S_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 MTR_S_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 MTR_S_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_MTR_S_DESTINATION TYPE STANDARD TABLE OF MTR_S_DESTINATION,
      WA_MTR_S_DESTINATION TYPE MTR_S_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: <MTR_S_DESTINATION> TYPE MTR_S_DESTINATION.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MTR_S_DESTINATION
*  INTO TABLE @DATA(IT_MTR_S_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_MTR_S_DESTINATION INDEX 1 INTO DATA(WA_MTR_S_DESTINATION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MTR_S_DESTINATION>-PERNR = 1.
<MTR_S_DESTINATION>-TRIPNO = 1.
<MTR_S_DESTINATION>-MOREI = 1.
<MTR_S_DESTINATION>-DISPLAY_MODE = 1.
<MTR_S_DESTINATION>-EDIT_VISIBLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MTR_S_DESTINATION-CRITICALITY, sy-vline,
  WA_MTR_S_DESTINATION-PLAN_ACTIVITY_TYPE_NAME, sy-vline,
  WA_MTR_S_DESTINATION-KEY_STOP, sy-vline,
  WA_MTR_S_DESTINATION-STOP_TYPE, sy-vline,
  WA_MTR_S_DESTINATION-DATEDEP, sy-vline,
  WA_MTR_S_DESTINATION-TIMEDEP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MTR_S_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_MTR_S_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_MTR_S_DESTINATION INTO WA_MTR_S_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 ADRNRADR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MTR_S_DESTINATION-ADRNRADR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MTR_S_DESTINATION-ADRNRADR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CITY_CODEADR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MTR_S_DESTINATION-CITY_CODEADR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MTR_S_DESTINATION-CITY_CODEADR.
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_MTR_S_DESTINATION_STR, 
PERNR TYPE STRING,
TRIPNO TYPE STRING,
MOREI TYPE STRING,
DISPLAY_MODE TYPE STRING,
EDIT_VISIBLE TYPE STRING,
CRITICALITY TYPE STRING,
PLAN_ACTIVITY_TYPE_NAME TYPE STRING,
KEY_STOP TYPE STRING,
STOP_TYPE TYPE STRING,
DATEDEP TYPE STRING,
TIMEDEP TYPE STRING,
CUSTOMER TYPE STRING,
LOCATION TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
TT_STATU TYPE STRING,
TT_COMSP TYPE STRING,
T_ACTYPE TYPE STRING,
PLAN_ACTIVITY_TYPE TYPE STRING,
REQ_ITINERARY_NUMBER TYPE STRING,
NO_NIGHT TYPE STRING,
ABSENCE_TYPE TYPE STRING,
ALLOWANCE_TYPE TYPE STRING,
SPOUSE_SEP_ALLW TYPE STRING,
CHARG_ACCOMM TYPE STRING,
ADRNRADR TYPE STRING,
CITYADR TYPE STRING,
CITY_DISTRICTADR TYPE STRING,
POST_CODEADR TYPE STRING,
CITY_CODEADR TYPE STRING,
STREETADR TYPE STRING,
HOUSE_NUMADR TYPE STRING,
COUNTRYADR TYPE STRING,
REGIONADR TYPE STRING,
COMING_FROM_PLAN TYPE STRING,
DISPLAY_ONLY TYPE STRING,
TAX_PER_DIEMTAX TYPE STRING,
TAX_PD_MANTAX TYPE STRING,
TAX_OV_MANTAX TYPE STRING,
VISIBLECDT TYPE STRING,
INPUTCDT TYPE STRING,
REQUIREDCDT TYPE STRING,
VISIBLECCO TYPE STRING,
INPUTCCO TYPE STRING,
REQUIREDCCO TYPE STRING,
SLEEP_AT_HOME TYPE STRING,
MPD_EXCL TYPE STRING,
VISIBLEMPD TYPE STRING,
INPUTMPD TYPE STRING,
REQUIREDMPD TYPE STRING,
ATTR_TRIP_BREAK TYPE STRING,
STOP_TYPE_TEXT TYPE STRING,
COUNTRY_REGION_NAME TYPE STRING,
TT_STATU_NAME TYPE STRING,
TT_COMSP_NAME TYPE STRING,
T_ACTYPE_NAME TYPE STRING,
ABSENCE_TYPE_NAME TYPE STRING,
ALLOWANCE_TYPE_NAME TYPE STRING,
SPOUSE_SEP_ALLW_NAME TYPE STRING,
SLEEP_AT_HOME_NAME TYPE STRING,
ATTR_TRIP_BREAK_NAME TYPE STRING,
CUSTOMER_LONG TYPE STRING,
LOCATION_LONG TYPE STRING,
DATEDEP_FC TYPE STRING,
TIMEDEP_FC TYPE STRING,
CUSTOMER_FC TYPE STRING,
LOCATION_FC TYPE STRING,
COUNTRY_FC TYPE STRING,
REGION_FC TYPE STRING,
TT_STATU_FC TYPE STRING,
TT_COMSP_FC TYPE STRING,
T_ACTYPE_FC TYPE STRING,
TT_STATU_NAME_FC TYPE STRING,
TT_COMSP_NAME_FC TYPE STRING,
T_ACTYPE_NAME_FC TYPE STRING,
PLAN_ACTIVITY_TYPE_FC TYPE STRING,
ADRNRADR_FC TYPE STRING,
CITYADR_FC TYPE STRING,
CITY_DISTRICTADR_FC TYPE STRING,
POST_CODEADR_FC TYPE STRING,
CITY_CODEADR_FC TYPE STRING,
STREETADR_FC TYPE STRING,
HOUSE_NUMADR_FC TYPE STRING,
COUNTRYADR_FC TYPE STRING,
REGIONADR_FC TYPE STRING,
TAX_PER_DIEMTAX_FC TYPE STRING,
TAX_PD_MANTAX_FC TYPE STRING,
TAX_OV_MANTAX_FC TYPE STRING,
SLEEP_AT_HOME_FC TYPE STRING,
ATTR_TRIP_BREAK_FC TYPE STRING,
NO_NIGHT_FC TYPE STRING,
ABSENCE_TYPE_FC TYPE STRING,
ALLOWANCE_TYPE_FC TYPE STRING,
SPOUSE_SEP_ALLW_FC TYPE STRING,
CHARG_ACCOMM_FC TYPE STRING,
PLAN_ACTIVITY_TYPE_NAME_FC TYPE STRING,
DESTINATION_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MTR_S_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_MTR_S_DESTINATION_STR-PERNR sy-vline 
WA_MTR_S_DESTINATION_STR-TRIPNO sy-vline 
WA_MTR_S_DESTINATION_STR-MOREI sy-vline 
WA_MTR_S_DESTINATION_STR-DISPLAY_MODE sy-vline 
WA_MTR_S_DESTINATION_STR-EDIT_VISIBLE sy-vline 
WA_MTR_S_DESTINATION_STR-CRITICALITY sy-vline 
WA_MTR_S_DESTINATION_STR-PLAN_ACTIVITY_TYPE_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-KEY_STOP sy-vline 
WA_MTR_S_DESTINATION_STR-STOP_TYPE sy-vline 
WA_MTR_S_DESTINATION_STR-DATEDEP sy-vline 
WA_MTR_S_DESTINATION_STR-TIMEDEP sy-vline 
WA_MTR_S_DESTINATION_STR-CUSTOMER sy-vline 
WA_MTR_S_DESTINATION_STR-LOCATION sy-vline 
WA_MTR_S_DESTINATION_STR-COUNTRY sy-vline 
WA_MTR_S_DESTINATION_STR-REGION sy-vline 
WA_MTR_S_DESTINATION_STR-TT_STATU sy-vline 
WA_MTR_S_DESTINATION_STR-TT_COMSP sy-vline 
WA_MTR_S_DESTINATION_STR-T_ACTYPE sy-vline 
WA_MTR_S_DESTINATION_STR-PLAN_ACTIVITY_TYPE sy-vline 
WA_MTR_S_DESTINATION_STR-REQ_ITINERARY_NUMBER sy-vline 
WA_MTR_S_DESTINATION_STR-NO_NIGHT sy-vline 
WA_MTR_S_DESTINATION_STR-ABSENCE_TYPE sy-vline 
WA_MTR_S_DESTINATION_STR-ALLOWANCE_TYPE sy-vline 
WA_MTR_S_DESTINATION_STR-SPOUSE_SEP_ALLW sy-vline 
WA_MTR_S_DESTINATION_STR-CHARG_ACCOMM sy-vline 
WA_MTR_S_DESTINATION_STR-ADRNRADR sy-vline 
WA_MTR_S_DESTINATION_STR-CITYADR sy-vline 
WA_MTR_S_DESTINATION_STR-CITY_DISTRICTADR sy-vline 
WA_MTR_S_DESTINATION_STR-POST_CODEADR sy-vline 
WA_MTR_S_DESTINATION_STR-CITY_CODEADR sy-vline 
WA_MTR_S_DESTINATION_STR-STREETADR sy-vline 
WA_MTR_S_DESTINATION_STR-HOUSE_NUMADR sy-vline 
WA_MTR_S_DESTINATION_STR-COUNTRYADR sy-vline 
WA_MTR_S_DESTINATION_STR-REGIONADR sy-vline 
WA_MTR_S_DESTINATION_STR-COMING_FROM_PLAN sy-vline 
WA_MTR_S_DESTINATION_STR-DISPLAY_ONLY sy-vline 
WA_MTR_S_DESTINATION_STR-TAX_PER_DIEMTAX sy-vline 
WA_MTR_S_DESTINATION_STR-TAX_PD_MANTAX sy-vline 
WA_MTR_S_DESTINATION_STR-TAX_OV_MANTAX sy-vline 
WA_MTR_S_DESTINATION_STR-VISIBLECDT sy-vline 
WA_MTR_S_DESTINATION_STR-INPUTCDT sy-vline 
WA_MTR_S_DESTINATION_STR-REQUIREDCDT sy-vline 
WA_MTR_S_DESTINATION_STR-VISIBLECCO sy-vline 
WA_MTR_S_DESTINATION_STR-INPUTCCO sy-vline 
WA_MTR_S_DESTINATION_STR-REQUIREDCCO sy-vline 
WA_MTR_S_DESTINATION_STR-SLEEP_AT_HOME sy-vline 
WA_MTR_S_DESTINATION_STR-MPD_EXCL sy-vline 
WA_MTR_S_DESTINATION_STR-VISIBLEMPD sy-vline 
WA_MTR_S_DESTINATION_STR-INPUTMPD sy-vline 
WA_MTR_S_DESTINATION_STR-REQUIREDMPD sy-vline 
WA_MTR_S_DESTINATION_STR-ATTR_TRIP_BREAK sy-vline 
WA_MTR_S_DESTINATION_STR-STOP_TYPE_TEXT sy-vline 
WA_MTR_S_DESTINATION_STR-COUNTRY_REGION_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-TT_STATU_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-TT_COMSP_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-T_ACTYPE_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-ABSENCE_TYPE_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-ALLOWANCE_TYPE_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-SPOUSE_SEP_ALLW_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-SLEEP_AT_HOME_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-ATTR_TRIP_BREAK_NAME sy-vline 
WA_MTR_S_DESTINATION_STR-CUSTOMER_LONG sy-vline 
WA_MTR_S_DESTINATION_STR-LOCATION_LONG sy-vline 
WA_MTR_S_DESTINATION_STR-DATEDEP_FC sy-vline 
WA_MTR_S_DESTINATION_STR-TIMEDEP_FC sy-vline 
WA_MTR_S_DESTINATION_STR-CUSTOMER_FC sy-vline 
WA_MTR_S_DESTINATION_STR-LOCATION_FC sy-vline 
WA_MTR_S_DESTINATION_STR-COUNTRY_FC sy-vline 
WA_MTR_S_DESTINATION_STR-REGION_FC sy-vline 
WA_MTR_S_DESTINATION_STR-TT_STATU_FC sy-vline 
WA_MTR_S_DESTINATION_STR-TT_COMSP_FC sy-vline 
WA_MTR_S_DESTINATION_STR-T_ACTYPE_FC sy-vline 
WA_MTR_S_DESTINATION_STR-TT_STATU_NAME_FC sy-vline 
WA_MTR_S_DESTINATION_STR-TT_COMSP_NAME_FC sy-vline 
WA_MTR_S_DESTINATION_STR-T_ACTYPE_NAME_FC sy-vline 
WA_MTR_S_DESTINATION_STR-PLAN_ACTIVITY_TYPE_FC sy-vline 
WA_MTR_S_DESTINATION_STR-ADRNRADR_FC sy-vline 
WA_MTR_S_DESTINATION_STR-CITYADR_FC sy-vline 
WA_MTR_S_DESTINATION_STR-CITY_DISTRICTADR_FC sy-vline 
WA_MTR_S_DESTINATION_STR-POST_CODEADR_FC sy-vline 
WA_MTR_S_DESTINATION_STR-CITY_CODEADR_FC sy-vline 
WA_MTR_S_DESTINATION_STR-STREETADR_FC sy-vline 
WA_MTR_S_DESTINATION_STR-HOUSE_NUMADR_FC sy-vline 
WA_MTR_S_DESTINATION_STR-COUNTRYADR_FC sy-vline 
WA_MTR_S_DESTINATION_STR-REGIONADR_FC sy-vline 
WA_MTR_S_DESTINATION_STR-TAX_PER_DIEMTAX_FC sy-vline 
WA_MTR_S_DESTINATION_STR-TAX_PD_MANTAX_FC sy-vline 
WA_MTR_S_DESTINATION_STR-TAX_OV_MANTAX_FC sy-vline 
WA_MTR_S_DESTINATION_STR-SLEEP_AT_HOME_FC sy-vline 
WA_MTR_S_DESTINATION_STR-ATTR_TRIP_BREAK_FC sy-vline 
WA_MTR_S_DESTINATION_STR-NO_NIGHT_FC sy-vline 
WA_MTR_S_DESTINATION_STR-ABSENCE_TYPE_FC sy-vline 
WA_MTR_S_DESTINATION_STR-ALLOWANCE_TYPE_FC sy-vline 
WA_MTR_S_DESTINATION_STR-SPOUSE_SEP_ALLW_FC sy-vline 
WA_MTR_S_DESTINATION_STR-CHARG_ACCOMM_FC sy-vline 
WA_MTR_S_DESTINATION_STR-PLAN_ACTIVITY_TYPE_NAME_FC sy-vline 
WA_MTR_S_DESTINATION_STR-DESTINATION_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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