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多选题
Which two statements are true regarding the USING clause in table joins?()
A

It can be used to join a maximum of three tables

B

It can be used to restrict the number of columns used in a NATURAL join

C

It can be used to access data from tables through equijoins as well as nonequijoins

D

It can be used to join tables that have columns with the same name and compatible data types


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