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看懂SqlServer查询计划
- WBOYOriginal
- 2016-06-07 15:51:351390browse
欢迎进入Windows社区论坛，与300万技术人员互动交流 >>进入 再来一个由三个查询组成的情况来看看这个视图的执行计划。 select * from dbo.OrdersView where OrderId = 1; select * from dbo.OrdersView where CustomerId = 1; select * from dbo.OrdersView
欢迎进入Windows社区论坛，与300万技术人员互动交流 >>进入
再来一个由三个查询组成的情况来看看这个视图的执行计划。
select * from dbo.OrdersView where OrderId = 1;
select * from dbo.OrdersView where CustomerId = 1;
select * from dbo.OrdersView where OrderDate >= '2010-12-1' and OrderDate
很明显，对于同一个视图，在不同的过滤条件下，执行计划的差别很明显。
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