結(jié)構(gòu)化查詢語言（SQL）單項(xiàng)選擇題每日一練(2020.04.28)

A.DELETE
B.DROP
C.CLEAR
D.REMOVE

A.Select*into customers from clients
B.Select into customers from clients
C.Insert into customers select*from clients
D.Insert customers select*from clients

A.完全備份
B.差異備份
C.事務(wù)日志備份
D.定時(shí)備份

A.SQL Server
B.SQL ServerAgent
C.sql database
D.PWS

A.1
B.2
C.>=2
D.多