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我正在尝试计算SAS EG中两个时间列之间的差异。我正在编写一个SQL查询来做到这一点。但我得到不正确的答案。这里是我的查询:SQL中时间列之间的差异
select
Time_DP, Time_AR, (Time_DP-time_AR) as timediff from table1
-------
这是我得到
Time_DP Time_AR timediff
23:00:00 20:31:00 22900
00:53:00 23:59:00 -230600
这些都只是两行,我得到的例子。我猜测他的timdiff值是以秒为单位的。如果是这样,他们应该是第一排149*60
秒,即8940
。
我还需要在hh:mm format
即02:29
我已经试过这科拉姆使用下述功能,没有一次成功:
--DATEDIFF(hour, Time_DP,time_AR) AS timediff
(Error: Hour is not a column of an inserted table. SQL code = -206, SQL state=42703)
--TIMEDIFF(CAST(AS TIME), CAST(time_AR AS TIME)) AS TIMIFF
(Error: No function by the name timediff having compatible arguments was found in the current path. sql code=-440, sql state=42284)
--DATEADD(SECOND, - DATEDIFF(SECOND, time_AR, Time_DP),) as timediff,
(ERROR: Second is not a column of an inserted table, updated table or any table identified in a from clause.SQL code = -206, SQL state=42703)
--Convert(time(0),(Convert(datetime,Time_DP) - Convert(datetime,Time_AR)),8) as timediff
(ERROR: Datetime is not a column of an inserted table, updated table or any table identified in a from clause.SQL code = -206, SQL state=42703)
--DATEDIFF(HOUR,Time_AR,Time_DP) AS timediff
(ERROR: Hour is not a column of an inserted table, updated table or any table identified in a from clause.SQL code = -206, SQL state=42703)
感谢
错误的** mysql **标签应该从这个问题中删除。它应该被替换为一个指向正在使用的_actual_ RDBMS的标记(Oracle,Postgres,SQL Server等) – spencer7593
是@ spencer7593是正确的,它不是mysql和错误消息不是mysql错误消息。 –