@@SPID (Transact-SQL)

Applies to: yesSQL Server (all supported versions) YesAzure SQL Database YesAzure SQL Managed Instance yesAzure Synapse Analytics yesParallel Data Warehouse

Returns the session ID of the current user process.

Topic link icon Transact-SQL Syntax Conventions

Syntax

@@SPID  

Note

To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation.

Return Types

smallint

Remarks

@@SPID can be used to identify the current user process in the output of sp_who.

Examples

This example returns the session ID, login name, and user name for the current user process.

SELECT @@SPID AS 'ID', SYSTEM_USER AS 'Login Name', USER AS 'User Name';  

Here is the result set.

ID     Login Name                     User Name                       
------ ------------------------------ ------------------------------  
54     SEATTLE\joanna                 dbo                             

Examples: Azure Synapse Analytics (SQL Data Warehouse) and Parallel Data Warehouse

This example returns the Microsoft Azure Synapse Analytics (formerly SQL Data Warehouse) session ID, the SQL Server Control node session ID, login name, and user name for the current user process.

SELECT SESSION_ID() AS ID, @@SPID AS 'Control ID', SYSTEM_USER AS 'Login Name', USER AS 'User Name';  

See Also

Configuration Functions
sp_lock (Transact-SQL)
sp_who