多选题In which three cases would you use the USING clause?（）AYou want to create a nonequijoin.BThe tables to be joined have multiple NULL columns.CThe tables to be joined have columns of the same name and different data types.DThe tables to be joined have columns with the same name and compatible data types.EYou want to use a NATURAL join, but you want to restrict the number of columns in the join condition.
多选题
In which three cases would you use the USING clause?（）
A
You want to create a nonequijoin.
B
The tables to be joined have multiple NULL columns.
C
The tables to be joined have columns of the same name and different data types.
D
The tables to be joined have columns with the same name and compatible data types.
E
You want to use a NATURAL join, but you want to restrict the number of columns in the join condition.
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