我试图在datediff函数中实现CASE语句,但它引发了一个ERROR: syntax error at or near "case"。即使在使用以下简化查询时,也会出现错误:
selectdatediff(CASE WHEN 1=1 THEN 'month' ELSE 'month' end,'2009-01-01','2009-12-31
我有以下代码 DECLARE @getSLAPrjectID CURSOR
SET @getSLAPrjectID = CURSOR FOR SELECTcase when (DATEDIFF(day,PlannedStartDate,PlannedEndDate)=0) THEN 0 ELSE (DATEDIFF(day,ActualStartDate,ActualEndDate)-DATEDIFF(day,PlannedStartDat
SQL: monitors.monitor_name, today = ISNULL(SUM(CASE WHEN time_stamp >= CAST(CAST(GETUTCDATE() AS date) AS datetime))) AS datetime) current_hour = ISNULL(SUM(
好的,我有一种情况,我需要比较表格中的一列和今天的日期。如果某一行中的值早于今天(换句话说,日期已经过了),我需要用短语“失效”标记一个虚拟列。下面是我一直使用的SQL ( Server 2012): datediff(day, sysdatetime(), policy_expiration_dt) As 'DayDiff',Case When 'DayDiff
我正在尝试将以下sql查询转换为linq。运行sql查询需要一秒钟,但linq返回结果需要大约10秒。谁能告诉我怎样才能减少linq查询的时间?selectdatediff(mm, min(QueuedTime), max(QueuedTime)), SequencingQueue group by SequencingQueue
order by <e