1 --创建测试表 2 CREATE TABLE [dbo].[TestRows2Columns]( 3 [Id] [int] IDENTITY(1,1) NOT NULL, 4 [UserName] [nvarchar](50) NULL, 5 [Subject] [nvarchar](50) NULL, 6 [Source] [numeric](18,0) NULL 7 ) 8 GO 9 10 --插入测试数据 11 INSERT INTO [TestRows2Columns] ([UserName],[Subject],[Source]) 12 SELECT N'张三',N'语文',60 UNION ALL 13 SELECT N'李四',N'数学',70 UNION ALL 14 SELECT N'王五',N'英语',80 UNION ALL 15 SELECT N'王五',N'数学',75 UNION ALL 16 SELECT N'王五',N'语文',57 UNION ALL 17 SELECT N'李四',N'语文',80 UNION ALL 18 SELECT N'张三',N'英语',100 19 GO 20 21 SELECT * FROM [TestRows2Columns] 22 23 24 25 26 --1 通过 select 累加 27 DECLARE @sql_col VARCHAR(8000) 28 SELECT @sql_col = ISNULL(@sql_col + ',','') + QUOTENAME([Subject]) FROM TestRows2Columns 29 GROUP BY [Subject] 30 31 SELECT @sql_col 32 33 34 35 36 --2 通过 FOR xml path('') 合并字符串记录 37 SELECT 38 STUFF( 39 (SELECT '#' + Subject 40 FROM TestRows2Columns 41 WHERE UserName = '王五' 42 FOR xml path('') 43 ),1,1,'' 44 ) 45 46 47 --3 分组合并字符串记录 48 SELECT 49 UserName, 50 Subject = ( 51 STUFF( 52 (SELECT '#' + Subject 53 FROM TestRows2Columns 54 WHERE UserName = A.UserName 55 FOR xml path('') 56 ),1,1,'' 57 ) 58 ) 59 FROM TestRows2Columns A 60 GROUP by UserName
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