Asp.net 连接mysql 会出现Fatal error encountered during command execution.的错误 解决办法如下: 连接字符串添加 Allow User Variables=True 若项目中使用了参数化或者sql语句中有变量存在,应加上上面这句,大意是允许执行用户定义的变量…
Oracle 和SQL server都有ROW_NUMBER() OVER这个功能函数,主要用于分组排序,而MySQL 却没有 SELECT * FROM (SELECT ROW_NUMBER() OVER (PARTITION BY H.ALARMINDEX ORDER BY H.HANDLETIME DESC) N, H.* FROM M_ALARMHANDLE H) M WHERE M.N=1 SELECT ROW_NUMBER() OVER (PARTITION BY H.ALARMIN…
MySQL + .net + EF 开发环境,调用一处sql语句报错: Fatal error encountered during command execution[sql] view plain copy print?SELECT @r AS cateid,(SELECT @r := b.ParentId FROM cmscontentcategory b WHERE b.id = cateid) AS parentid FROM (SELECT @r := '75422ccd151c48…