摘要: #查询慢sql select db,time,info from INFORMATION_SCHEMA.processlist where info is not null; #查看执行计划 explain SELECT COUNT(1) FROM tables_name WHERE valid = 阅读全文
posted @ 2024-04-24 17:46 苍茫宇宙 阅读(4) 评论(0) 推荐(0) 编辑