下面检索结果一定不是一行的命令： A: select distinct * from orders ; B: select * from orders limit 1，2; C: select top 1 * from orders; D: select * from orders limit 1;
下面检索结果一定不是一行的命令： A: select distinct * from orders ; B: select * from orders limit 1，2; C: select top 1 * from orders; D: select * from orders limit 1;
用SQL语句实现权限管理时,授予用户user1对orders表的插入权限。下列授权语句正确的是( )。 A: GRANT INSERT to orders on user1 B: GRANT INSERT to user1 on orders C: GRANT INSERT on orders to user1 D: GRANT INSERT on orders
用SQL语句实现权限管理时,授予用户user1对orders表的插入权限。下列授权语句正确的是( )。 A: GRANT INSERT to orders on user1 B: GRANT INSERT to user1 on orders C: GRANT INSERT on orders to user1 D: GRANT INSERT on orders
How early can delivery orders be placed?Delivery orders can be made up to almost_____.
How early can delivery orders be placed?Delivery orders can be made up to almost_____.
用Tran-SQL语句实现权限管理时，收回用户user1对Orders表的查询权限。下列收回权限语句正确的是： 。 A: GRANT SELECT on Orders from user1 B: REVOKE SELECT on Orders from user1 C: GRANT SELECT on Orders to user1 D: REVOKE SELECT on Orders to user1
用Tran-SQL语句实现权限管理时，收回用户user1对Orders表的查询权限。下列收回权限语句正确的是： 。 A: GRANT SELECT on Orders from user1 B: REVOKE SELECT on Orders from user1 C: GRANT SELECT on Orders to user1 D: REVOKE SELECT on Orders to user1
John orders a beer.
John orders a beer.
用Tran-SQL语句实现权限管理时，授予用户user1对Orders表的插入权限。下列授权语句正确的是 。 A: GRANT INSERT on Orders B: GRANT INSERT to user1 C: GRANT INSERT to Orders on user1 D: GRANT INSERT on Orders to user1
用Tran-SQL语句实现权限管理时，授予用户user1对Orders表的插入权限。下列授权语句正确的是 。 A: GRANT INSERT on Orders B: GRANT INSERT to user1 C: GRANT INSERT to Orders on user1 D: GRANT INSERT on Orders to user1
Mary orders steak and chips.
Mary orders steak and chips.
Mary orders a diet coke.
Mary orders a diet coke.
Military orders are _ _ and cannot be disobeyed.
Military orders are _ _ and cannot be disobeyed.
The clerk orders chicken for the passenger.
The clerk orders chicken for the passenger.