ABAP Select data from SAP table TSITEM_TYPE_HOTEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TSITEM_TYPE_HOTEL
*  INTO TABLE @DATA(IT_TSITEM_TYPE_HOTEL2).
*--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_TSITEM_TYPE_HOTEL INDEX 1 INTO DATA(WA_TSITEM_TYPE_HOTEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TSITEM_TYPE_HOTEL>-CONTROLLER = 1.
<TSITEM_TYPE_HOTEL>-SPECIAL_PREFS = 1.
<TSITEM_TYPE_HOTEL>-CONTROLLER = 1.
<TSITEM_TYPE_HOTEL>-TEXT = 1.
<TSITEM_TYPE_HOTEL>-POS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TSITEM_TYPE_HOTEL-CONTROLLER, sy-vline,
  WA_TSITEM_TYPE_HOTEL-SOURCE, sy-vline,
  WA_TSITEM_TYPE_HOTEL-CONTROLLER, sy-vline,
  WA_TSITEM_TYPE_HOTEL-REQUESTOR_ID, sy-vline,
  WA_TSITEM_TYPE_HOTEL-ROOM_TYPES, sy-vline,
  WA_TSITEM_TYPE_HOTEL-CONTROLLER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TSITEM_TYPE_HOTEL 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_TSITEM_TYPE_HOTEL 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_TSITEM_TYPE_HOTEL INTO WA_TSITEM_TYPE_HOTEL.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TSITEM_TYPE_HOTEL_STR, 
CONTROLLER TYPE STRING,
SPECIAL_PREFS TYPE STRING,
CONTROLLER TYPE STRING,
TEXT TYPE STRING,
POS TYPE STRING,
CONTROLLER TYPE STRING,
SOURCE TYPE STRING,
CONTROLLER TYPE STRING,
REQUESTOR_ID TYPE STRING,
ROOM_TYPES TYPE STRING,
CONTROLLER TYPE STRING,
ROOM_TYPE TYPE STRING,
CONTROLLER TYPE STRING,
ROOM_TYPE_CODE TYPE STRING,
NUMBER_OF_UNITS TYPE STRING,
SHORT_TEXT TYPE STRING,
ROOM_RATES TYPE STRING,
CONTROLLER TYPE STRING,
ROOM_RATE TYPE STRING,
CONTROLLER TYPE STRING,
RATES TYPE STRING,
CONTROLLER TYPE STRING,
RATE TYPE STRING,
CONTROLLER TYPE STRING,
BASE TYPE STRING,
CONTROLLER TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY_CODE TYPE STRING,
COMMISSION TYPE STRING,
CONTROLLER TYPE STRING,
NON_COMMISSION TYPE STRING,
AMOUNT TYPE STRING,
PERCENT TYPE STRING,
CONTENT TYPE STRING,
GUEST_COUNTS TYPE STRING,
CONTROLLER TYPE STRING,
GUEST_COUNT TYPE STRING,
CONTROLLER TYPE STRING,
EXTRA_GUEST TYPE STRING,
ROLL_AWAY TYPE STRING,
CRIB TYPE STRING,
RESERVE_UNDER_NAME TYPE STRING,
COUNT TYPE STRING,
TIME_SPAN TYPE STRING,
CONTROLLER TYPE STRING,
START TYPE STRING,
DURATION TYPE STRING,
END TYPE STRING,
GUARANTEE TYPE STRING,
CONTROLLER TYPE STRING,
GUARANTEES_ACCEPTED TYPE STRING,
CONTROLLER TYPE STRING,
GUARANTEE_ACCEPTED TYPE STRING,
CONTROLLER TYPE STRING,
PAYMENT_CARD TYPE STRING,
CONTROLLER TYPE STRING,
CARD_NUMBER TYPE STRING,
BASIC_PROPERTY_INFO TYPE STRING,
CONTROLLER TYPE STRING,
CHAIN_CODE TYPE STRING,
HOTEL_CODE TYPE STRING,
HOTEL_CITY_CODE TYPE STRING,
HOTEL_NAME TYPE STRING,
CONFIRMATION_NUMBER TYPE STRING,
ADDRESS TYPE STRING,
CONTROLLER TYPE STRING,
ADDRESS_LINE TYPE STRING,
COUNTRY_CODE TYPE STRING,
CONTACT_NUMBERS TYPE STRING,
CONTROLLER TYPE STRING,
CONTACT_NUMBER TYPE STRING,
FAX TYPE STRING,
CONTROLLER TYPE STRING,
NUMBER TYPE STRING,
CANCEL_PENALTY TYPE STRING,
CUST_LOYALTY TYPE STRING,
IDNUMBER TYPE STRING,
CORPORATE_ID TYPE STRING,
TEXT TYPE STRING,
SEGMENT_NUMBER TYPE STRING,
TYPE TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TSITEM_TYPE_HOTEL_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_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-SPECIAL_PREFS sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-TEXT sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-POS sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-SOURCE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-REQUESTOR_ID sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-ROOM_TYPES sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-ROOM_TYPE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-ROOM_TYPE_CODE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-NUMBER_OF_UNITS sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-SHORT_TEXT sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-ROOM_RATES sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-ROOM_RATE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-RATES sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-RATE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-BASE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-AMOUNT sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CURRENCY_CODE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-COMMISSION sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-NON_COMMISSION sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-AMOUNT sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-PERCENT sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTENT sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-GUEST_COUNTS sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-GUEST_COUNT sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-EXTRA_GUEST sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-ROLL_AWAY sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CRIB sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-RESERVE_UNDER_NAME sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-COUNT sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-TIME_SPAN sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-START sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-DURATION sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-END sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-GUARANTEE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-GUARANTEES_ACCEPTED sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-GUARANTEE_ACCEPTED sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-PAYMENT_CARD sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CARD_NUMBER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-BASIC_PROPERTY_INFO sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CHAIN_CODE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-HOTEL_CODE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-HOTEL_CITY_CODE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-HOTEL_NAME sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONFIRMATION_NUMBER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-ADDRESS sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-ADDRESS_LINE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-COUNTRY_CODE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTACT_NUMBERS sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTACT_NUMBER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-FAX sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CONTROLLER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-NUMBER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CANCEL_PENALTY sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CUST_LOYALTY sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-IDNUMBER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-CORPORATE_ID sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-TEXT sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-SEGMENT_NUMBER sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-TYPE sy-vline 
WA_TSITEM_TYPE_HOTEL_STR-STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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