1.查看SQL语句IO消耗

set statistics io on 
    select * from dbo.jx_order where order_time>'2011-04-12 12:49:57.580' 
set statistics io off

2.查看SQL语句时间消耗

set statistics time on 
     select * from dbo.jx_order where order_time>'2011-04-12 12:49:57.580' 
set statistics time off

3.查看SQL语句索引消耗

set statistics profile on 
       select * from dbo.jx_order
       where order_time>'2011-04-12 12:49:57.580' 
set statistics profile off

此上图中的红框可以看到此查询走了聚集索引扫描