请教一个sql的问题# Database - 数据库
A*y
1 楼
现在我有一个view，是几个database的union里抽出来的
因为看view比较方便分析，请问有没有什么办法可以直接通过操作view修改database？
我对database的结构不太熟悉……
因为看view比较方便分析，请问有没有什么办法可以直接通过操作view修改database？
我对database的结构不太熟悉……
x*e
2 楼
different databases have different strategies.
I do not understand why after union or join you can not update view.
As long as data integraty is maintained, views should be able to be modify.
The main purpose for a view is to minimize denormolization and maintain security.
It could endup behaving differently in different databases though.
I do not understand why after union or join you can not update view.
As long as data integraty is maintained, views should be able to be modify.
The main purpose for a view is to minimize denormolization and maintain security.
It could endup behaving differently in different databases though.
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