Shulou(Shulou.com)06/01 Report--

This article mainly introduces when mysql can use the index, the article is very detailed, has a certain reference value, interested friends must read it!

Indexes are needed in MySQL when using link that does not start with a wildcard, when fetching rows from a table when joins, and finding out the max or min values of a specified index, etc.

When MySQL uses the index

Use >, > =, = for a key code

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.