ABAP Select data from SAP table AMI_HOTEL_TYPE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AMI_HOTEL_TYPE
*  INTO TABLE @DATA(IT_AMI_HOTEL_TYPE2).
*--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_AMI_HOTEL_TYPE INDEX 1 INTO DATA(WA_AMI_HOTEL_TYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AMI_HOTEL_TYPE>-CONTROLLER = 1.
<AMI_HOTEL_TYPE>-TYPE = 1.
<AMI_HOTEL_TYPE>-CONTROLLER = 1.
<AMI_HOTEL_TYPE>-TYPE = 1.
<AMI_HOTEL_TYPE>-THIRD_PARTY_INFO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AMI_HOTEL_TYPE-CHECK_IN_DATE, sy-vline,
  WA_AMI_HOTEL_TYPE-CHECK_OUT_DATE, sy-vline,
  WA_AMI_HOTEL_TYPE-LOCATION, sy-vline,
  WA_AMI_HOTEL_TYPE-CONTROLLER, sy-vline,
  WA_AMI_HOTEL_TYPE-BASE, sy-vline,
  WA_AMI_HOTEL_TYPE-CONTROLLER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AMI_HOTEL_TYPE 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_AMI_HOTEL_TYPE 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_AMI_HOTEL_TYPE INTO WA_AMI_HOTEL_TYPE.


*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_AMI_HOTEL_TYPE_STR, 
CONTROLLER TYPE STRING,
TYPE TYPE STRING,
CONTROLLER TYPE STRING,
TYPE TYPE STRING,
THIRD_PARTY_INFO TYPE STRING,
CHECK_IN_DATE TYPE STRING,
CHECK_OUT_DATE TYPE STRING,
LOCATION TYPE STRING,
CONTROLLER TYPE STRING,
BASE TYPE STRING,
CONTROLLER TYPE STRING,
LOCATION_CODE TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
CITY_CODE TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
COUNTRY_CODE TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
STATE_CODE TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
AREA TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
TRANSPORTATION TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
HOTEL_INFO TYPE STRING,
CONTROLLER TYPE STRING,
HOTEL_OCCUPANCY TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
HOTEL TYPE STRING,
CONTROLLER TYPE STRING,
BASE TYPE STRING,
CONTROLLER TYPE STRING,
NAME TYPE STRING,
ADDRESS TYPE STRING,
CONTROLLER TYPE STRING,
ADDRESS_LINE TYPE STRING,
ZIP_CODE TYPE STRING,
CITY TYPE STRING,
STATE TYPE STRING,
COUNTRY TYPE STRING,
GEO_CODE TYPE STRING,
CONTROLLER TYPE STRING,
LATITUDE TYPE STRING,
LONGITUDE TYPE STRING,
PHONE TYPE STRING,
FAX TYPE STRING,
EMAIL TYPE STRING,
TELEX TYPE STRING,
CODE TYPE STRING,
COMPANY TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
ACCESS_TYPE TYPE STRING,
ADDITIONAL_INFO TYPE STRING,
CHECK_IN_POLICY_INFO TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
CANCELLATION_POLICY_INFO TYPE STRING,
CONTROLLER TYPE STRING,
FREE_FLOW_TEXT TYPE STRING,
ROOM_TYPE TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
GDS_ROOM_TYPE TYPE STRING,
ROOM_CODE TYPE STRING,
BED_TYPE TYPE STRING,
ROOM_RATE_DESCRIPTION_LIST TYPE STRING,
SPECIAL_RATE_TYPE TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
SPECIAL_RATE_LIST TYPE STRING,
MEAL_TYPE TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
SMOKING_PREFERENCE TYPE STRING,
CHECK_IN_PREFERENCE TYPE STRING,
CONTROLLER TYPE STRING,
VALUE TYPE STRING,
TIME TYPE STRING,
CHECK_OUT_PREFERENCE TYPE STRING,
CONTROLLER TYPE STRING,
VALUE TYPE STRING,
TIME TYPE STRING,
SPECIAL_SERVICE_REQUEST_LIST TYPE STRING,
SELL_INFO_LIST TYPE STRING,
BED_NUMBER TYPE STRING,
HOTEL_FARE TYPE STRING,
HOTEL_TOTAL_PRICING_INFO TYPE STRING,
LOWEST_FARE TYPE STRING,
JUSTIFICATION TYPE STRING,
GUARANTEE TYPE STRING,
CONTROLLER TYPE STRING,
PAYMENT_TYPE TYPE STRING,
PAYMENT_NUMBER TYPE STRING,
DEPOSIT TYPE STRING,
CONTROLLER TYPE STRING,
PAYMENT_TYPE TYPE STRING,
PAYMENT_NUMBER TYPE STRING,
STATUS TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
NAME TYPE STRING,
PERMISSIONS TYPE STRING,
CONTROLLER TYPE STRING,
IS_MODIFICATION_ALLOWED TYPE STRING,
IS_CANCELLATION_ALLOWED TYPE STRING,
IS_DATE_CHANGE_ONLY_ALLOWED TYPE STRING,
CONFIRMATION_NUMBER TYPE STRING,
CANCELLATION_NUMBER TYPE STRING,
CORPORATE_DISCOUNT_NUMBER TYPE STRING,
ID TYPE STRING,
NUMBER_OF_NIGHTS TYPE STRING,
IS_OUT_OF_POLICY TYPE STRING,
IS_PAID_BY_CREDIT_CARD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AMI_HOTEL_TYPE_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_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-THIRD_PARTY_INFO sy-vline 
WA_AMI_HOTEL_TYPE_STR-CHECK_IN_DATE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CHECK_OUT_DATE sy-vline 
WA_AMI_HOTEL_TYPE_STR-LOCATION sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-BASE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-LOCATION_CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-CITY_CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-COUNTRY_CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-STATE_CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-AREA sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-TRANSPORTATION sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-HOTEL_INFO sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-HOTEL_OCCUPANCY sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-HOTEL sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-BASE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-ADDRESS sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-ADDRESS_LINE sy-vline 
WA_AMI_HOTEL_TYPE_STR-ZIP_CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CITY sy-vline 
WA_AMI_HOTEL_TYPE_STR-STATE sy-vline 
WA_AMI_HOTEL_TYPE_STR-COUNTRY sy-vline 
WA_AMI_HOTEL_TYPE_STR-GEO_CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-LATITUDE sy-vline 
WA_AMI_HOTEL_TYPE_STR-LONGITUDE sy-vline 
WA_AMI_HOTEL_TYPE_STR-PHONE sy-vline 
WA_AMI_HOTEL_TYPE_STR-FAX sy-vline 
WA_AMI_HOTEL_TYPE_STR-EMAIL sy-vline 
WA_AMI_HOTEL_TYPE_STR-TELEX sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-COMPANY sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-ACCESS_TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-ADDITIONAL_INFO sy-vline 
WA_AMI_HOTEL_TYPE_STR-CHECK_IN_POLICY_INFO sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-CANCELLATION_POLICY_INFO sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-FREE_FLOW_TEXT sy-vline 
WA_AMI_HOTEL_TYPE_STR-ROOM_TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-GDS_ROOM_TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-ROOM_CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-BED_TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-ROOM_RATE_DESCRIPTION_LIST sy-vline 
WA_AMI_HOTEL_TYPE_STR-SPECIAL_RATE_TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-SPECIAL_RATE_LIST sy-vline 
WA_AMI_HOTEL_TYPE_STR-MEAL_TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-SMOKING_PREFERENCE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CHECK_IN_PREFERENCE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-VALUE sy-vline 
WA_AMI_HOTEL_TYPE_STR-TIME sy-vline 
WA_AMI_HOTEL_TYPE_STR-CHECK_OUT_PREFERENCE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-VALUE sy-vline 
WA_AMI_HOTEL_TYPE_STR-TIME sy-vline 
WA_AMI_HOTEL_TYPE_STR-SPECIAL_SERVICE_REQUEST_LIST sy-vline 
WA_AMI_HOTEL_TYPE_STR-SELL_INFO_LIST sy-vline 
WA_AMI_HOTEL_TYPE_STR-BED_NUMBER sy-vline 
WA_AMI_HOTEL_TYPE_STR-HOTEL_FARE sy-vline 
WA_AMI_HOTEL_TYPE_STR-HOTEL_TOTAL_PRICING_INFO sy-vline 
WA_AMI_HOTEL_TYPE_STR-LOWEST_FARE sy-vline 
WA_AMI_HOTEL_TYPE_STR-JUSTIFICATION sy-vline 
WA_AMI_HOTEL_TYPE_STR-GUARANTEE sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-PAYMENT_TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-PAYMENT_NUMBER sy-vline 
WA_AMI_HOTEL_TYPE_STR-DEPOSIT sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-PAYMENT_TYPE sy-vline 
WA_AMI_HOTEL_TYPE_STR-PAYMENT_NUMBER sy-vline 
WA_AMI_HOTEL_TYPE_STR-STATUS sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CODE sy-vline 
WA_AMI_HOTEL_TYPE_STR-NAME sy-vline 
WA_AMI_HOTEL_TYPE_STR-PERMISSIONS sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONTROLLER sy-vline 
WA_AMI_HOTEL_TYPE_STR-IS_MODIFICATION_ALLOWED sy-vline 
WA_AMI_HOTEL_TYPE_STR-IS_CANCELLATION_ALLOWED sy-vline 
WA_AMI_HOTEL_TYPE_STR-IS_DATE_CHANGE_ONLY_ALLOWED sy-vline 
WA_AMI_HOTEL_TYPE_STR-CONFIRMATION_NUMBER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CANCELLATION_NUMBER sy-vline 
WA_AMI_HOTEL_TYPE_STR-CORPORATE_DISCOUNT_NUMBER sy-vline 
WA_AMI_HOTEL_TYPE_STR-ID sy-vline 
WA_AMI_HOTEL_TYPE_STR-NUMBER_OF_NIGHTS sy-vline 
WA_AMI_HOTEL_TYPE_STR-IS_OUT_OF_POLICY sy-vline 
WA_AMI_HOTEL_TYPE_STR-IS_PAID_BY_CREDIT_CARD sy-vline      INTO ld_text SEPARATED BY SPACE.

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