我真的复习了几次,这就是我要问的原因;寻找指导...
I REALLY review several times, that's the reason I am asking; looking for guidance...
我有一张桌子,如下脚本.然后,设置IDENTITY_INSERT ON.然后,我尝试进行插入选择,(我需要非常相同的ID)
I have one table, as the script below. Then, I set IDENTITY_INSERT ON. Then I try to do an insert select, (I NEED the very same ids)
我不断收到此错误:
信息544,第16级,状态1,第2行 当IDENTITY_INSERT设置为OFF时,无法为表'Table1'中的标识列插入显式值.
Msg 544, Level 16, State 1, Line 2 Cannot insert explicit value for identity column in table 'Table1' when IDENTITY_INSERT is set to OFF.
有人知道为什么吗?在数据库级别进行的任何设置都可以否决IDENTITY_INSERT ON吗?
Does anybody knows why? Any set up at DB level can overrule the IDENTITY_INSERT ON?
我感谢任何建议.在此先感谢您,并致以亲切的问候.
I appreciate any advice. Thanks in advance and kind regards.
表格脚本:
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].Table1 ( [TableId] [int] IDENTITY(1,1) NOT NULL, [Name] [nvarchar](256) NOT NULL, [RowVersion] [timestamp] NOT NULL, [AddedDate] [datetime2](7) NOT NULL, [stuff2] [int] NOT NULL, [ModifiedDate] [datetime2](7) NOT NULL, [LastModifiedBy] [int] NOT NULL, CONSTRAINT [Table1_PK] PRIMARY KEY CLUSTERED ([TableId] ASC) ) ON [PRIMARY] GOinsert语句:
SET IDENTITY_INSERT [dbo].Table1 ON; INSERT INTO [dbo].Table1 ([TableId], [Name], [AddedDate], [stuff2], [ModifiedDate], [LastModifiedBy]) SELECT [RoleID], [Name], [AddedDate], [stuff2], [ModifiedDate], [LastModifiedBy] FROM [dbo].Table2推荐答案
非常感谢@Sami,您可以帮助我实现正确的道路. 事实证明,您可以只将IDENTITY_INSERT一次用于一个表(出于明显的原因,我经常不这样做). 当我一次处理多个表时,我看到了错误,但是由于表的名称相似,我认为它引发了错误,因为我之前在同一张表上运行过Identity_insert,但这是因为它是由另一张桌子. 直到我逐一查看错误消息后,我才意识到. :P:D
Thank you so much @Sami, you help me to realize the right path. It turns out, you can just use, IDENTITY_INSERT to one table at time (for obvious reasons is not a thing I do often). When I did for several tables at time, I saw the error, but as the name of the tables were similar, I thought it was throwing an error because I ran the Identity_insert before on the same table, but it was because it was taken by the other table. I didn't realized until I review the Error messages one by one. :P :D
https ://dba.stackexchange/questions/12650/why-is-identity-insert-on-only-allowed-on-on-one-table-一次一次
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