Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Ask a Question
Welcome To Ask or Share your Answers For Others

Categories

select * from table where id > x limit 10 执行流程？

0 votes
1.2k views
in Technique[技术] by (71.8m points)

select * from table where id > x limit 10 执行流程？

select * from table where id > x limit 10 执行流程？
假设table有100W条数据，x=1W，那么数据库是找到1w以后的99W行记录然后取出前10条吗?还是只取出10001~10010这10条数据？


与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

磁盘上就近找10个大于1W的


与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

Just Browsing Browsing

2.1m questions

2.1m answers

60 comments

57.0k users

Most popular tags

Powered by Question2Answer
Donate
Theme by Q2A Market&&OStack.cn
...