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我有一个名为Call_Data表和数据的样子:组合两个时间间隔查询
Arr_Date Interval Han_Time SL_Time
2011-03-16 18:39:31.000 1830 1200 245
2011-03-16 20:06:03.000 2000 261 85
2011-03-31 00:35:42.000 0030 1900 400
2011-03-31 02:13:06.000 0200 2000 350
现在我想知道,有Han_time> 1800 SL_Time> 300
这样的记录数我写了两个查询来做到这一点:
Select Arr_Date, Interval,
Count(*) AS Han_Time_1800
From Call_Data
where Han_Time>1800
Group by Arr_Date,Interval
Order by Arr_Date,Interval
Select Arr_Date, Interval,
Count(*) AS SL_Time_300
From Call_Data
where SL_Time>300
Group by Arr_Date,Interval
Order by Arr_Date,Interval
是否有一种方法,我可以在一个查询中得到两个值?
没有如果Han_time is1900什么,SL_time是250 – Peter