Create a Simple Database Table for ABAP Environment

Define the table columns (client, booking, customername, numberofpassengers, …). Specify client and booking as key fields, and the field currencycode as currency key for cost as displayed below. The table annotations (beginning with @) remain unchanged. For that, you can copy the database table definition provided below.

@EndUserText.label : 'Demo: Booking Data'
@AbapCatalog.enhancementCategory : #NOT_EXTENSIBLE
@AbapCatalog.tableCategory : #TRANSPARENT
@AbapCatalog.deliveryClass : #A
@AbapCatalog.dataMaintenance : #LIMITED
define table ztbooking_xxx {
key client         : abap.clnt not null;
key booking        : abap.int4 not null;
customername       : abap.char(50);
numberofpassengers : abap.int2;
emailaddress       : abap.char(50);
country            : abap.char(50);
dateofbooking      : timestampl;
dateoftravel       : timestampl;
@Semantics.amount.currencyCode : 'ztbooking_xxx.currencycode'
cost               : abap.curr(15,2);
currencycode       : abap.cuky;
lastchangedat      : timestampl;
}

Save and activate the database table.

Replace the source code of your class with the one provided below:

CLASS zcl_generate_bookings_xxx DEFINITION
  PUBLIC
  FINAL
  CREATE PUBLIC .

  PUBLIC SECTION.
    INTERFACES if_oo_adt_classrun.
  PROTECTED SECTION.
  PRIVATE SECTION.
ENDCLASS.


CLASS zcl_generate_bookings_xxx IMPLEMENTATION.

  METHOD if_oo_adt_classrun~main.
    DATA:it_bookings TYPE TABLE OF ztbooking_xxx.

*    read current timestamp
    GET TIME STAMP FIELD DATA(zv_tsl).
*   fill internal table (itab)
    it_bookings = VALUE #(
        ( booking  = '1' customername = 'Buchholm' numberofpassengers = '3' emailaddress = 'tester1@flight.example.com'
          country = 'Germany' dateofbooking ='20180213125959' dateoftravel ='20180213125959' cost = '546' currencycode = 'EUR' lastchangedat = zv_tsl )
        ( booking  = '2' customername = 'Jeremias' numberofpassengers = '1' emailaddress = 'tester2@flight.example.com'
          country = 'USA' dateofbooking ='20180313125959' dateoftravel ='20180313125959' cost = '1373' currencycode = 'USD' lastchangedat = zv_tsl )
     ).

*   Delete the possible entries in the database table - in case it was already filled
    DELETE FROM ztbooking_xxx.
*   insert the new table entries
    INSERT ztbooking_xxx FROM TABLE @it_bookings.

*   check the result
    SELECT * FROM ztbooking_xxx INTO TABLE @it_bookings.
    out->write( sy-dbcnt ).
    out->write( 'data inserted successfully!').

  ENDMETHOD.

ENDCLASS.

Save and active your class.