Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Explain Output Format 8.0(mysql执行计划) | Ming的博客 #15

Open
heyanming opened this issue May 7, 2024 · 0 comments
Open

Comments

@heyanming
Copy link
Owner

https://kingfried.cn/2355376955/

EXPLAIN 语句提供有关 MySQL 如何执行语句的信息。 EXPLAIN 适用于 SELECT、DELETE、INSERT、REPLACE 和 UPDATE 语句。EXPLAIN 为 SELECT 语句中使用的每个表返回一行信息。它按照MySQL在处理语句时读取表的顺序列出。这意味着MySQL从第一个表中读取一行,然后在第二个表中查找匹配的行,然后在第三个表中查找匹配的行,依此类推。处理完所

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
Development

No branches or pull requests

1 participant