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
题目
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.