t sql check if data exists

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Elías
09 Aug 2019
1if exists(select 1 from INFORMATION_SCHEMA.TABLES T 
2              where T.TABLE_NAME = 'Bookings') 
3begin
4    drop table Bookings
5end
6GO
7
8create table Bookings(
9  FlightID    int identity(1, 1) primary key,
10  TicketsMax    int not null,
11  TicketsBooked int not null
12)
13GO
14
15insert  Bookings(TicketsMax, TicketsBooked) select 1, 0
16insert  Bookings(TicketsMax, TicketsBooked) select 2, 2
17insert  Bookings(TicketsMax, TicketsBooked) select 3, 1
18GO
19
20select * from Bookings
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