SQL Server 2005 行号、合并、分组

--> 测试数据：[a] if object_id('[a]') is not null drop table [a] go create table [a]([djbh] varchar(10),[spid] varchar(10),[shl] int) insert [a] select 'bh001' ,'sp001' ,10 union all select 'bh001' ,'sp0

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