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from model_list a, model_mark b \
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and a.wcr ......

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if not object_id('ta') is null
  drop table ta
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Create table ta([product] nvarchar(2),[spec] nvarchar(2))
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select N'p1',N's1' union all
select N'p1',N's2' union all
select N'p1',N's3' union ......

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ÇóÒ»ÌõSQLÓï¾ä - MS-SQL Server / »ù´¡Àà

±íÃûnews ×Ö¶ÎID,TITLENAME 
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declare @n int
set @n=3
select ......
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