<div class="codebody" id="code82677"> --创建 test 表 ，插入数据CREATE TABLE test(code varchar(50),[values] varchar(10),[count] int) INSERT test SELECT '001','aa',1 UNION ALL SELECT '001','bb',2 UNION ALL SELECT '002','aaa',4 UNION ALL SELECT '002','bbb',5 UNION ALL SELECT '002','ccc',3;--方法一 --将多行合并成一行，并做分组统计 SELECT code, [values] = stuff(b.[values].value('/R[1]','nvarchar(max)'), , ''),[count] FROM (SELECT code,sum([count]) as [count] FROM test GROUP BY code) a CROSS apply ( SELECT [values] =( SELECT N',' + [values] FROM test WHERE code = a.code FOR XML PATH(''),ROOT('R'),TYPE ) ) b;--方法二---sql2005中的新解法 使用XMLSELECT code,data=STUFF((SELECT ','+[values] FROM test t WHERE code=t1.code FOR XML PATH('')),1,''),sum([count]) as [count] FROM test t1 GROUP BY code--查询结果--001 aa,bb 3 --002 aaa,bbb,ccc 12drop table test
