焦糖花粥

启动mysql服务service mysql start进入mysql的操作：linux-ho03:/home/snsh/data # mysql -uroot -pEnter password: Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 3Server version: 5.4.3-beta-community-log MySQL Community Se

转载自https://www.cnblogs.com/zsg88/p/7533437.html1.下载MySQL Community Server 5.6.37https://dev.mysql.com/downloads/mysql/5.6.html#downloads2.解压MySQL压缩包将以下载的MySQL压缩包解压到自定义目录下。例如 D:\Program Files\mysql-5.6.37-winx643.添加环境变量我的电脑---属性---高级---.

转载自https://www.cnblogs.com/hider/p/12642452.htmlhttps://blog.youkuaiyun.com/SeizeeveryDay/article/details/105424385第一部分：SQL查询一、活动运营数据分析表1：订单表orders，大概字段有（user_id‘用户编号’, order_pay‘订单金额’ , order_time‘下单时间’）表2：活动报名表act_apply，大概字段有（act_id‘活动编号’, user_id...