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SqlServer2000行转列的实现(横排) - 站长搜索
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SqlServer2000行转列的实现(横排)

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">
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2022-09-23 20:12:44 转载来源: 网络整理/侵权必删

我们用到的表结构如下:三张表的关系为:现有的测试数据为:我们需要的结果是:复制代码代码如下:DECLARE@strSQLVARCHAR(8000)SET@strSQL='SELECTt.STUNAME[姓名]'SELECT@strSQL=@strSQL+',SUM(CASEs.SNAMEWHEN'''+SNAME+'''THENg.[Score]END)['+SNAME+']'FROM(SELECTSNAMEFROM[Subject])AStmpSELECT@strSQL=@strSQL+'FROM[Score]g,[Subject]s,[Student]tWHEREg.SID=s.SIDANDg.STUID=t.STUIDGROUPBYt.STUID,t.STUNAME'EXEC(@strSQL)SQLSERVER2005中,已经有实现此功能的内置方法了。

我们用到的表结构如下:

stu

sub

score

三张表的关系为:

r.pg

现有的测试数据为:

s

ss

t

我们需要的结果是:

r

复制代码 代码如下:

DECLARE @strSQL VARCHAR(8000)
SET @strSQL = 'SELECT t.STUNAME [姓名]'
SELECT @strSQL = @strSQL + ',SUM(CASE s.SNAME WHEN ''' + SNAME + ''' THEN g.[Score] END) [' + SNAME + ']' FROM (SELECT SNAME FROM [Subject]) AS tmp
SELECT @strSQL = @strSQL + ' FROM [Score] g,[Subject] s, [Student] t WHERE g.SID=s.SID AND g.STUID = t.STUID GROUP BY t.STUID, t.STUNAME'
EXEC(@strSQL)

SQL SERVER 2005 中,已经有实现此功能的内置方法了。

标签: SqlServer2000 行转列 实现 横排


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