單項(xiàng)選擇題修改表的命令為()

A.Create table
B.rename table
C.alter table
D.drop table


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1.多項(xiàng)選擇題數(shù)據(jù)庫xscj中有xs表,下列()語句可以執(zhí)行。

A.use xscj
B.use xs
C.rename table xs to xs1
D.rename database xscj to xscj1

3.單項(xiàng)選擇題使用數(shù)據(jù)庫的命令為()

A.Create database
B.use database
C.alter database
D.drop database

4.單項(xiàng)選擇題創(chuàng)建表的命令為()

A.Create table
B.rename table
C.alter table
D.drop table

5.單項(xiàng)選擇題修改數(shù)據(jù)庫的命令為()

A.Create database
B.use database
C.alter database
D.drop database