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A.drop table
B.delete
C.turn cate table
D.rename table

A.varchar
B.text
C.blob
D.bool

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

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

A.show tables xs
B.desc xs
C.show databases xs
D.desc xs 學(xué)號