if not object_id('Tempdb..T') is null drop table TGoCreate table T([groupid] nvarchar(1),[val] FLOAT)Insert Tselect 'a',2.5 union allselect 'a',3 union allselect 'a',1 union allselect 'b',4 union allselect 'b',6 union allselect 'b',1 union alls
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posted @ 2012-01-13 13:05 小杨随笔 Views(10) Comments(0)
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