Question

我在DateTime中有一列，并且像我在下面的查询中尝试的那样，需要通过SQL select查询来获取每个站点的状态。执行查询时收到错误-“'TIMESTAMPDIFF'不是公认的内置函数名称。”

SELECT co.controllerid,
   co.controllerno,
   co.ControllerName,
   co.SerialNo,
   co.MACAddress,
   c.HBLatestDateTime,
   c.TrnxLatestDateTime,
   'STATUS' AS STAT,
   CASE
        WHEN TIMESTAMPDIFF(MINUTE, c.HBLatestDateTime, GETDATE()) <= 5 THEN 'online'
        WHEN (TIMESTAMPDIFF(MINUTE, c.HBLatestDateTime, GETDATE()) > 720
          AND TIMESTAMPDIFF(MINUTE, c.HBLatestDateTime, GETDATE()) <= 30) THEN 'idle'
        ELSE 'offline'
   END AS user_status
FROM Controllers AS co
     INNER JOIN Controllersruntime AS c ON c.ControllerID = co.ControllerID
                                       AND co.Markdeleted != 1
WHERE HBLatestDateTime = CONVERT(date, GETDATE())
ORDER BY co.ControllerName ASC;

Answer 1

TIMESTAMPDIFF是MySql中的一个函数，我想您想使用DATEDIFF

QUEUE_DRIVER=database

SQL-需要类似DATETIME的在线离线状态

1 个答案: