项目中常用的19条MySQL优化
项目复制select id from `table_name` order by rand() limit 1000; 1.
项目复制select id from `table_name` order by rand() limit 1000; 1.
项目复制select id from `table_name` order by rand() limit 1000; 1.
项目复制select id from `table_name` order by rand() limit 1000; 1.