多項選擇題數(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


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2.單項選擇題使用數(shù)據(jù)庫的命令為()

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

3.單項選擇題創(chuàng)建表的命令為()

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

4.單項選擇題修改數(shù)據(jù)庫的命令為()

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