Question

有没有更好的方法来重写代码？查询需要永远执行。感谢

 SELECT * from w..ts
    where not si in
    (
    select si from g..sa
    )
    and ci in
    (
    Select ClientID from w..tcwhere ds= 'AZ'
    )
    and s> 2
    and sd between '1/1/2010' and GETDATE()
    order by si

Answer 1

考虑加入或改为使用。

SELECT * from webservice..tService
left join table t1 on t1.col1 = tService.col2
inner join table t2 on t2.col1 = tService.col2
where t1.ServiceID is null
and ServiceStep > 2
and ServiceDate between '1/1/2010' and GETDATE()
order by ServiceID

如何加快超时的SQL查询？

1 个答案: