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--小时
select datediff(hh,GetTime,CallTime)
--分钟
select datediff(mi,GetTime,CallTime)
--秒
select datediff(ss,GetTime,CallTime)
--小时
select datediff(hh,GetTime,CallTime)
--分钟
select datediff(mi,GetTime,CallTime)
--秒
select datediff(ss,GetTime,CallTime)
select datediff(ss,GetTime,CallTime)
--秒
select datediff(ss,GetTime,CallTime)
--分钟
select datediff(mi,GetTime,CallTime)
--小时
select datediff(hh,GetTime,CallTime)
select datediff(ss,GetTime,CallTime) from tb--表名
select datediff(ss,GetTime,CallTime)