ABAP Select data from SAP table PTRV_WEB_ITINERARY_INT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTRV_WEB_ITINERARY_INT
*  INTO TABLE @DATA(IT_PTRV_WEB_ITINERARY_INT2).
*--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_PTRV_WEB_ITINERARY_INT INDEX 1 INTO DATA(WA_PTRV_WEB_ITINERARY_INT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTRV_WEB_ITINERARY_INT>-KEY_STOP = 1.
<PTRV_WEB_ITINERARY_INT>-STOP_TYPE = 1.
<PTRV_WEB_ITINERARY_INT>-DATEDEP = 1.
<PTRV_WEB_ITINERARY_INT>-TIMEDEP = 1.
<PTRV_WEB_ITINERARY_INT>-CUSTOMER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTRV_WEB_ITINERARY_INT-LOCATION, sy-vline,
  WA_PTRV_WEB_ITINERARY_INT-COUNTRY, sy-vline,
  WA_PTRV_WEB_ITINERARY_INT-REGION, sy-vline,
  WA_PTRV_WEB_ITINERARY_INT-TT_STATU, sy-vline,
  WA_PTRV_WEB_ITINERARY_INT-TT_COMSP, sy-vline,
  WA_PTRV_WEB_ITINERARY_INT-T_ACTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTRV_WEB_ITINERARY_INT 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_PTRV_WEB_ITINERARY_INT 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_PTRV_WEB_ITINERARY_INT INTO WA_PTRV_WEB_ITINERARY_INT.


*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_PTRV_WEB_ITINERARY_INT-ADRNRADR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTRV_WEB_ITINERARY_INT-ADRNRADR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CITY_CODEADR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTRV_WEB_ITINERARY_INT-CITY_CODEADR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTRV_WEB_ITINERARY_INT-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_PTRV_WEB_ITINERARY_INT_STR, 
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,END OF T_EKKO_STR.
DATA: WA_PTRV_WEB_ITINERARY_INT_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_PTRV_WEB_ITINERARY_INT_STR-KEY_STOP sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-STOP_TYPE sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-DATEDEP sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-TIMEDEP sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-CUSTOMER sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-LOCATION sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-COUNTRY sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-REGION sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-TT_STATU sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-TT_COMSP sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-T_ACTYPE sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-PLAN_ACTIVITY_TYPE sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-REQ_ITINERARY_NUMBER sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-NO_NIGHT sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-ABSENCE_TYPE sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-ALLOWANCE_TYPE sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-SPOUSE_SEP_ALLW sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-CHARG_ACCOMM sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-ADRNRADR sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-CITYADR sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-CITY_DISTRICTADR sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-POST_CODEADR sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-CITY_CODEADR sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-STREETADR sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-HOUSE_NUMADR sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-COUNTRYADR sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-REGIONADR sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-COMING_FROM_PLAN sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-DISPLAY_ONLY sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-TAX_PER_DIEMTAX sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-TAX_PD_MANTAX sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-TAX_OV_MANTAX sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-VISIBLECDT sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-INPUTCDT sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-REQUIREDCDT sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-VISIBLECCO sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-INPUTCCO sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-REQUIREDCCO sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-SLEEP_AT_HOME sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-MPD_EXCL sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-VISIBLEMPD sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-INPUTMPD sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-REQUIREDMPD sy-vline 
WA_PTRV_WEB_ITINERARY_INT_STR-ATTR_TRIP_BREAK sy-vline      INTO ld_text SEPARATED BY SPACE.

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