1、使用索引
2、优化SQL语句
3、分析查询语句
4、join
参考文档
https://www.cnblogs.com/HuiH/p/12546282.html
https://www.cnblogs.com/houss/p/10598901.html
https://blog.csdn.net/qq_42499188/article/details/89293851
https://www.jb51.net/article/39221.htm
参考文档
https://www.cnblogs.com/HuiH/p/12546282.html
https://www.cnblogs.com/houss/p/10598901.html
https://blog.csdn.net/qq_42499188/article/details/89293851
https://www.jb51.net/article/39221.htm