SQL Row_Number() 删除重复数据(单字段OR多字段) 长沙

--------------------------删除单字段重复-----------------------------------------------

If Exists(Select * From tempdb.Information_Schema.Tables Where Table_Name Like '#Temp%') 
Drop Table #temp 
Create Table #temp ([Id] int, [Name] varchar(50), [Age] int, [Sex] bit default 1) 
Go 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(1,'James',254,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(1,'James',274,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(1,'Jamessdf',22,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(2,'Lisa',245,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(2,'Lishja',24,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(2,'Lisghja',225,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(3,'Mirjsa',23,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(3,'Mirhjsa',278,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(3,'Mirghsa',23,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(4,'Joghjhn',26,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(5,'Abghjraham',28,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(6,'Linghjcoln',30,default) 

Select * From #temp 
--删除ID重复
Delete T From 
(Select Row_Number() Over(Partition By [ID] order By [ID]) As RowNumber,* From #Temp)T 
Where T.RowNumber > 1 


--------------------------删除多字段重复-----------------------------------------------

TRUNCATE TABLE #temp --清空表的数据
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(1,'James',254,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(1,'James',274,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(1,'Jamessdf',22,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(2,'Lisa',245,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(2,'Lisa',24,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(2,'Lisghja',225,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(3,'Mirjsa',23,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(3,'Mirjsa',278,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(3,'Mirghsa',23,0) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(4,'Joghjhn',26,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(5,'Abghjraham',28,default) 
Insert Into #temp ([Id] , [Name] , [Age] , [Sex] ) Values(6,'Linghjcoln',30,default) 

--删除编号与名字 重复的数据  Partition By [ID],[Name]
Delete T From 
(Select Row_Number() Over(Partition By [ID],[Name] order By [ID]) As RowNumber,* From #Temp)T 
Where T.RowNumber > 1