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@@IDENTITY - IDENTITY Function

Posted By: Sarita Patel     Category: SQL Server     Views: 6924

This article explains about @@IDENTITY function in sql server with examples.

@@IDENTITY returne the last identity value generated in any table in the current session. 

After an INSERT, SELECT INTO, or bulk copy statement completes, @@IDENTITY contains the last identity value generated by the statement. 

If the statement did not affect any tables with identity columns, @@IDENTITY returns NULL. 

If multiple rows are inserted, generating multiple identity values, @@IDENTITY returns the last identity value generated. 

The scope of the @@IDENTITY function is the local server on which it is executed. This function cannot be applied to remote or linked servers. 


Syntax of @@IDENTITY Function :

@@IDENTITY

Return type of @@IDENTITY function is a numeric.




Examples of @@IDENTITY Function :

Example 1 : Use of @@IDENTITY function in select clause 

SELECT @@IDENTITY

Output
NULL

Above example returns null as in current session no rows are inserted in any table.
  
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Sarita Patel
Sarita Patel author of @@IDENTITY - IDENTITY Function is from United States.
 
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