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Home > Database > Mysql Tutorial > mysql-MySQL 查询语句是否具有循环

mysql-MySQL 查询语句是否具有循环

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Release： 2016-06-06 09:33:36
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mysql效率查询循环数据

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我想实现下图的图表 数据显示 但是MySQL查询语句不熟悉 只能写出上面图的代码 其中年份是需要的参数 月份是循环的部分 求大神指教 怎样优化 尽量使代码简单并且节省时间
急求 提前拜谢

Related labels：
mysql 效率 查询 循环 数据
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