u012970850的专栏

@Slf4j @Configuration @MapperScan(basePackages = MerchantDruidConfig.PACKAGE, sqlSessionTemplateRef = "merchantSqlSessionTemplate") public class MerchantDruidConfig { static final String PACKAGE = "com.xx.mapper"; static final String MAPPER_LOC..

原文出自 https://blog.youkuaiyun.com/lifetragedy/article/details/51013069 。 60-80% of database performance issues are related to poorly performing SQL，60-80%的数据库性能问题要归结于生产中糟糕的SQL语句！   以此一文来总结笔者近10多年来的工作经验并基于...

mysql>show processlist; mysql>kill thread_id;