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@Transactional注解的使用范围

docker修改mysql配置文件后，无法启动mysql容器

Oracle数据库解除锁表语句1、查看哪些表被锁了：SELECT object_name, machine, s.sid, s.serial# FROM gv$locked_object l, dba_objects o, gv$session s WHERE l.object_id　 = o.object_id AND l.session_id = s.sid; 2、根据sid解除锁定：alter system kill session 'sid, serial#'; ...

SQL SERVER拼接查询结果的方法用‘/’分隔查询的语句select BGID,WD_JCompany,WD_SCompany,WD_TCar,WD_SCar,WD_TemMin,WD_TemMax,WD_HemMin,WD_HemMax,WD_StartTime,WD_ServiceTime,WD_CollSpace,WD_TemAsk,WDID,WD_RecordCount,WD_Re...

SpringBoot连接数据库的配置application.yml文件配置如下图：application.yml文件代码如下（注意yml文件中的空格）：spring:datasource:#配置MYSQL数据库url: jdbc:mysql://localhost:3306/mydemo?useUnicode=true&characterEncoding=utf8&...