SQL Server切換羣集表

Question

我在SQL Server 2012中編寫了下一個腳本，但它在約束上失敗。

我有一張有20 000 000行的表格。 我創建相同的表與分區索引相同，但是當我切換 表時，SQL Server未能

這裏是我的代碼：

CREATE DATABASE test 
USE test 

create Partition Function 
[PF_Table_Log] ([DATETIME2](3)) As Range left For VALUES 
('2016-04-05 00:00:00.000','2016-04-06 00:00:00.000', 
'2016-04-07 00:00:00.000','2016-04-08 00:00:00.000') 



Create Partition Scheme PS_Table_Log_Datetime 
As Partition [PF_Table_Log] 
All To ([Primary]); 


create TABLE [Log](
[LogId] [BIGINT] IDENTITY(1,1) NOT NULL, 
[ServiceInstanceId] [UNIQUEIDENTIFIER] NULL, 
[ServiceId] [UNIQUEIDENTIFIER] NOT NULL, 
[Component] [NVARCHAR](100) NULL, 
[MachineName] [NVARCHAR](50) NULL, 
[Datetime] [DATETIME2](3) NOT NULL, 
[Severity] [INT] NOT NULL, 
[LogText] [NVARCHAR](max) NULL, 
[MessageId] [UNIQUEIDENTIFIER] NULL, 
[MessageRole] [INT] NULL 
) ON [PRIMARY] 

GO 

CREATE CLUSTERED INDEX [PK_Log] ON [Log] 
(

[LogId] ASC, 
[datetime] ASC 

)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, 
DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON,ALLOW_PAGE_LOCKS=ON)    
GO 


create TABLE [Log_new1](
[LogId] [BIGINT] IDENTITY(1,1) NOT NULL, 
[ServiceInstanceId] [UNIQUEIDENTIFIER] NULL, 
[ServiceId] [UNIQUEIDENTIFIER] NOT NULL, 
[Component] [NVARCHAR](100) NULL, 
[MachineName] [NVARCHAR](50) NULL, 
[Datetime] [DATETIME2](3) NOT NULL, 
[Severity] [INT] NOT NULL, 
[LogText] [NVARCHAR](max) NULL, 
[MessageId] [UNIQUEIDENTIFIER] NULL, 
[MessageRole] [INT] NULL 
) ON PS_Table_Log_Datetime (datetime) 
GO 


CREATE CLUSTERED INDEX [PK_Log] ON [Log_new1] 
(
[LogId] ASC,[Datetime] asc 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, 
) ON PS_Table_Log_Datetime ([Datetime]) 




ALTER TABLE [Log] SWITCH TO [Log_new1] PARTITION 5 

Answer 1

「我有相同的索引創建相同的表有分區，但是當我切換表時，SQL Server失敗「

這條語句與腳本不一致。表Log未分區，但是Log_new1是。您需要使用相同的分區方案對Log進行分區，或者對匹配目標分區邊界的Log表列創建檢查約束。最後一個分區所需的檢查約束定義爲：

ALTER TABLE Log ADD CONSTRAINT CK_Log_Datetime CHECK (Datetime > '2016-04-08 00:00:00.000');