Đề trắc nghiệm lập trình C

Đề trắc nghiệm lập trình C

Chapter 10

Exercises

1 alter table service

add constraint Default_Servicename default 'First Aid' for service_name

2 create rule check_servicecode

as @scode in ('CC', 'N', 'WC')

go

sp_bindrule 'check_servicecode', 'airline_service.service_code'

3 alter table airlines_master

add constraint PK_aircode primary key (aircode)

insert into airlines_master values (NULL, 'Cathay Pacific')

4 alter table Flight_days

add constraint chk_daycode check (day_code between 1 and 7)

5 alter table airline_meal

add constraint FK_aircode

foreign key (aircode) references airlines_master (aircode)

6 create clustered index citycode_ndx on city_master (city_code)

7 create index pnrno_tktno_ndx

on passenger (pnr_no, ticket_no)

with pad_index, fillfactor=75

OR

create nonclustered index pnrno_tktno_ndx

on passenger (pnr_no, ticket_no)

with pad_index, fillfactor=75

8 sp_helpindex airlines_master

Chapter 11

Check Your Progress

1 The first statement creates a temporary table that occupies storage space The second

statement creates a view that does not occupy any storage space

Chapter 12

Exercises

1 create view pass_view as

select r.pnr_no, aircraft_code, ticket_no, name, status from reservation r inner join passenger p

on r.pnr_no=p.pnr_no

where r.pnr_no < 4

with check option

2 select * from pass_view

3 update pass_view

set name = 'Pam Houston'

where ticket_no=3

select name from passenger where ticket_no=3

4 create view weekend_flights as

select * from flight_days where day_code=1 or day_code=7

5 delete weekend_flights

where aircraft_code='AI03' and day_code=7

select * from flight_days

where aircraft_code='AI03' and day_code=7

6 alter view pass_view with schemabinding as

select r.pnr_no, aircraft_code, ticket_no, name, status from dbo.reservation r inner join dbo.passenger p

on r.pnr_no=p.pnr_no

where r.pnr_no < 4

with check option

7 create unique clustered index name_ndx

on pass_view (name)

sp_spaceused pass_view

go

sp_spaceused weekend_flights

8 create table CC_table

( aircode char(2),

service_code varchar(3) check (service_code='CC') constraint pk_cc primary key (aircode, service_code)) insert into CC_table

select * from airline_service where service_code='CC' create table WC_table

( aircode char(2),

service_code varchar(3) check (service_code='WC')

constraint pk_wc primary key (aircode, service_code))

insert into WC_table

select * from airline_service where service_code='WC'

create table N_table

( aircode char(2),

service_code varchar(3) check (service_code='N')

constraint pk_n primary key (aircode, service_code))

insert into N_table

select * from airline_service where service_code='N'

9 create view all_services as

select * from cc_table

union all

select * from wc_table

union all

select * from n_table

10 insert into all_services values ('CP', 'CC')

select * from cc_table where aircode=‘CP’ and service_code=‘CC’