) '订单数' FROM (SELECT CASE THEN ), create_at, ) ),DATEPART(hh, create_at))+':00:00') ELSE ), create_at, ) ),DATEPART(hh, create_at))+':30:00') END 'dttime',* FROM dbo.[order](NOLOCK) o WHERE create_at >= '2018-07-11' and create_at<'2018-07-12') a GRO
在连接字符串中 添加设置节点 ConnectionLifeTime(计量单位为 秒).超过设定的连接会话 会被杀死! Connection Lifetime, ConnectionLifeTime 0 When a connection is returned to the pool, its creation time is compared with the current time, and the connection is destroyed if that time span (i