问题

Which two statements about views are t

Which two statements about views are true? （）

A A view can be created as read only.
B A view can be created as a join on two or more tables.
C A view cannot have an ORDER BY clause in the SELECT statement.
D A view cannot be created with a GROUP BY clause in the SELECT statement.
E A view must have aliases defined for the column names in the SELECT statement.

参考答案

参考解析：

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