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INTO #t from #test
ORDER BY [ÐÕÃû],[ѧ¿Æ]
DECLARE @col1 varchar,@col2 nvarchar(100)
UPDATE #t SET
@col2=CASE WHEN @col1=[ÐÕÃû] THEN @col2+','+[ѧ¿Æ] ELSE [ѧ¿Æ] END,
@col1=[ÐÕÃû],
[ѧ¿Æ]=@col2

SELECT [ÐÕÃû],[ѧ¿Æ]=MAX([ѧ¿Æ]) from #t GROUP BY [ÐÕÃû]



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