上篇我们说到了横列转纵列,下面就来说下纵列转横列
1.建表
CREATE TABLE [dbo].[EndLongChangeAcross]( [Id] [INT] IDENTITY(1,1) NOT NULL, [Name] [NVARCHAR](50) NOT NULL, [Chinese] [INT] NOT NULL, [English] [INT] NOT NULL, [Math] [INT] NOT NULL, CONSTRAINT [PK_EndLongChangeAcross] PRIMARY KEY CLUSTERED ( [Id] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] GO ALTER TABLE [dbo].[EndLongChangeAcross] ADD CONSTRAINT [DF_EndLongChangeAcross_Chinese] DEFAULT ((0)) FOR [Chinese] GO ALTER TABLE [dbo].[EndLongChangeAcross] ADD CONSTRAINT [DF_EndLongChangeAcross_English] DEFAULT ((0)) FOR [English] GO ALTER TABLE [dbo].[EndLongChangeAcross] ADD CONSTRAINT [DF_EndLongChangeAcross_Math] DEFAULT ((0)) FOR [Math] GO
2.具体SQL
SELECT Name , ‘语文‘ AS ‘Subject‘, Chinese AS ‘Score‘ FROM dbo.EndLongChangeAcross UNION ALL SELECT Name , ‘英语‘, English AS ‘Score‘ FROM dbo.EndLongChangeAcross UNION ALL SELECT Name , ‘数学‘ , Math AS ‘Score‘ FROM dbo.EndLongChangeAcross ORDER BY Name DESC
具体效果:
时间: 2024-12-20 21:02:50