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Index optimization of performance tuning methodology

2022-07-05 21:58:00 【Short section senior】

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Is it worth indexing

selectivity
Data density
The data distribution
Statistics

What is database engine optimization consultant ?

Analyze data performance using working load
It provides two ways: graphical and command line
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Index fragment

How are fragments produced

When the data is modified or causes the index page to split ,SQL Server Will reorganize the index page

resolvent

<= 30% debris = Reorganize
> 30% debris = Rebuild
Welcome to join me for wechat exchange and discussion （ Please note csdn Add ）
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https://yzsam.com/2022/02/202202140504324468.html

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