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单选题
What is true about updates through a view?（）
A
You cannot update a view with group functions.
B
When you update a view group functions are automatically computed.
C
When you update a view only the constraints on the underlying table will be in effect.
D
When you update a view the constraints on the views always override the constraints on the underlying tables.
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更多 “单选题What is true about updates through a view?（）A You cannot update a view with group functions.B When you update a view group functions are automatically computed.C When you update a view only the constraints on the underlying table will be in effect.D When you update a view the constraints on the views always override the constraints on the underlying tables.” 相关考题
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