小编Ham*_*gar的帖子

我有很多数据表,我想转换为Microsoft Temporal表,但是当我想转换时态表导致丢失我的数据.我的代码是:

Alter TABLE dbo.Employee   
(    
  [EmployeeID] int NOT NULL PRIMARY KEY CLUSTERED   
  , [Name] nvarchar(100) NOT NULL  
  , [Position] varchar(100) NOT NULL   
  , [Department] varchar(100) NOT NULL  
  , [Address] nvarchar(1024) NOT NULL  
  , [AnnualSalary] decimal (10,2) NOT NULL  
  , [ValidFrom] datetime2 (2) GENERATED ALWAYS AS ROW START  
  , [ValidTo] datetime2 (2) GENERATED ALWAYS AS ROW END  
  , PERIOD FOR SYSTEM_TIME (ValidFrom, ValidTo)  
 )    
 WITH (SYSTEM_VERSIONING = ON (HISTORY_TABLE = dbo.EmployeeHistory)); 

如何通过保存数据将存在表改为Sql时态表？