数据库基于SQL SERVER 2000。
交叉表实例 建表: 在查询分析器里运行: CREATE TABLE [Test] ( [id] [int] IDENTITY (1, 1) NOT NULL , [name] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL , [subject] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL , [Source] [numeric](18, 0) NULL ) ON [PRIMARY] GO INSERT INTO [test] ([name],[subject],[Source]) values (N'张三',N'语文',60) INSERT INTO [test] ([name],[subject],[Source]) values (N'李四',N'数学',70) INSERT INTO [test] ([name],[subject],[Source]) values (N'王五',N'英语',80) INSERT INTO [test] ([name],[subject],[Source]) values (N'王五',N'数学',75) INSERT INTO [test] ([name],[subject],[Source]) values (N'王五',N'语文',57) INSERT INTO [test] ([name],[subject],[Source]) values (N'李四',N'语文',80) INSERT INTO [test] ([name],[subject],[Source]) values (N'张三',N'英语',100) Go 交叉表语句的实现: 用于:交叉表的列数是确定的 select name,sum(case subject when '数学' then source else 0 end) as '数学', sum(case subject when '英语' then source else 0 end) as '英语', sum(case subject when '语文' then source else 0 end) as '语文' from test group by name --用于:交叉表的列数是不确定的 declare @sql varchar(8000) set @sql = 'select name,' select @sql = @sql + 'sum(case subject when '''+subject+''' then source else 0 end) as '''+subject+''',' from (select distinct subject from test) as a select @sql = left(@sql,len(@sql)-1) + ' from test group by name' exec(@sql) go 运行结果: 插入数据的另一种写法: Insert Class |