Identity_insert是什么
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Identity_insert是什么
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Web1 feb. 2024 · 任何时候,一个会话中只有一个表的 IDENTITY_INSERT 属性可以设置为 ON。 如果某个表已将此属性设置为 ON,则对另一个表发出 SET IDENTITY_INSERT … WebON; INSERT SELECT 把select 语句的查询结果插入到表中,这个中方法要比上面的INSERT VALUES 效率高 SET IDENTITY_INSERT Sales.MyOrders ON; INSERT INTO …
Web14 mei 2010 · SET IDENTITY_INSERT dbo.Tool ON GO--非法的格式 INSERT INTO dbo.Tool SELECT * FROM dbo.Tool_T GO Msg 8101, Level 16, State 1, Line 1 An explicit value for the identity column in table 'dbo.Tool' can only be specified when a column list is used and IDENTITY_INSERT is ON.--可行的格式 INSERT INTO dbo.Tool(ID,Name) … WebRemember, after this statement, you can’t insert values into the Identity column (Here, [Customer Key]). SET IDENTITY_INSERT [Customer] OFF. Use the below query to check whether the above statement inserted the values into the Identity Column or not. SELECT * FROM [Customer] You can see that we successfully inserted the values into the ...
http://www.tuohang.net/article/266101.html Web25 jun. 2024 · IDENTITY_INSERTis a table property that allows you to insert explicit values into the column of table identifiers, i.e. into the column with IDENTITY. The value of the inserted identifier can be either less than the current value or more, for example, to skip a certain interval of values.
Web2 feb. 2024 · Based on this answer Entity Framework IDENTITY_INSERT ON doesn't work, you turned Identity Insert on just briefly, and it didn't include the insert. If its possible, try creating a big sql query string starting with "SET IDENTITY_INSERT Test.Items ON;" followed by your INSERT INTO... and finally "SET IDENTITY_INSERT Test.Items OFF;" …
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