Sql选择查询执行计划 [英] Sql select query execution plan

问题描述

我有一个MSSQL表，Id字段是增量的。

现在id值是985300.



但是实际的记录数是64000.Reason是我删除了两者之间的行。



所以我什么时候执行select语句会降低任何性能吗？



我尝试过：



i测试没有遇到任何重大差异。

想知道数据增长是否有任何问题

Hi,

I have a MSSQL table where Id field is incremental.
Now id value is 985300.

But actual count of records is 64000.Reason is i have deleted the rows in between.

so when i am executing select statement will it reduce any perfomance?.

What I have tried:

i have tested not facing any signifcant diffrence.
wanted to know as data grows is there any Problem

推荐答案

As Tomas提到，不，这不是问题。你应该有一个定期维护sql作业计划运行，其中一部分应该是重建索引所以应该没有问题。

As Tomas mentioned, no it is not a problem. You should have a regular maintenance sql job plan running and part of that should be rebuilding indexes so there should be no issue.

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