In anchoring orders, “Weigh anchor” means “（）”.
第1题：
下列语句错误的是( )
A.select * from orders where ordername is not null;
B.select * from orders where ordername<>null;
C.select * from orders where ordername is null;
D.select * from orders where ordername not is null;
第2题：
Inwhichsituationwillyourunthescriptcontainingthefollowingstatement？（）
CREATECONTROLFILEREUSEDATABASESALESNORESETLOGSARCHIVELOG
MAXLOGFILES20
MAXLOGMEMBERS3
MAXDATAFILES30
MAXINSTANCES10
MAXLOGHISTORY1200
LOGFILE
GROUP1（
’/disk1/prod/orders/db/log1a.dbf’，
’/disk2/prod/orders/db/log1b.dbf’
）SIZE100K
GROUP2（
’/disk1/prod/orders/db/log2a.dbf’，
’/disk2/prod/orders/db/log2b.dbf’
）SIZE100K，
DATAFILE
’/disk1/prod/orders/db/database1.dbf’，
’/disk2/prod/orders/db/file1.dbf’；
第3题：
A、scale
B、measurement
第4题：
Masters are required to notify Port Authorities of anchorage bearings after ______.
A.departure
B.leaving
C.anchored
D.anchoring
第5题：
How many orders are included in standard ship orders? Can you list some?
第6题：
A.CREATESYNONYMordFORorders;ThiscommandisissuedbyOE
B.CREATEPUBLICSYNONYMordFORorders;ThiscommandisissuedbyOE
C.CREATESYNONYMordFORoe.orders;Thiscommandisissuedbythedatabaseadministrator
D.CREATEPUBLICSYNONYMordFORoe.orders;Thiscommandisissuedbythedatabaseadministrator
第7题：
Examine the data from the ORDERS and CUSTOMERS table.Which SQL statement retrieves the order ID, customer ID, and order total for the orders that are placed on the same day that Martin places his orders?（）
A.
B.
C.
D.
第8题：
下面检索结果一定不是一行的命令是( )
A.select distinct * from orders ;
B.select * from orders limit 1,2;
C.select top 1 * from orders;
D.select * from orders limit 1;
第9题：
A.接入层安全性
B.MOBILITY ANCHORING FOR INTER-3GPP MOBILITY
C.MOBILITY ANCHORING FOR NON-3GPP ACCESS SYSTEM
D.触发和分发寻呼到ENODEB
第10题：
In anchoring orders, WALK BACK THE CHAIN means ______.
A.pay away the chain
B.check up the chain
C.take a strain on the chain
D.take in the chain