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BeginTime BtsId Total68PhyRCENum
2009-9-30 0:00 1 192
2009-10-1 0:00 1 192
2009-10-2 0:00 1 192
2009-10-3 0:00 1 192
2009-10-4 0:00 1 256
2009-10-5 0:00 1 256
2009-10-6 0:00 1 256
2009-10-7 0:00 1 256
2009-10-8 0:00 1 256
2009-10-9 0:00 1 256
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BeginTime BtsId Total68PhyRCENum
2009-9-30 0:00 1 192
2009-10-1 0:00 1 192
2009-10-2 0:00 1 192
2009-10-3 0:00 1 192
2009-10-4 0:00 1 256
2009-10-5 0:00 1 256
2009-10-6 0:00 1 256
2009-10-7 0:00 1 256
2009-10-8 0:00 1 256
2009-10-9 0:00 1 256
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SQL code:
select *,id=identity(int,1,1) into #t from tb1
select b.* from #t a,#t b
where a.id=b.id-1 and a.Total68PhyRCENum!=b.Total68PhyRCENum
select min(BeginTime)
group by Total68PhyRCENum
2009-9-30 0:00 1 192
2009-10-1 0:00 1 192
2009-10-2 0:00 1 192
2009-10-3 0:00 1 192
2009-10-4 0:00 1 256
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