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多选题
Which two statements are true about simple views？（）
A
Views can be created as read only.
B
Views are data segments like tables.
C
Views can be created on the basis of more than one table.
D
Data manipulation language （DML） operations cannot be performed on views.
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更多 “多选题Which two statements are true about simple views？（）AViews can be created as read only.BViews are data segments like tables.CViews can be created on the basis of more than one table.DData manipulation language （DML） operations cannot be performed on views.” 相关考题
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