spid-transact-sql.md

title	@@SPID (Transact-SQL) | Microsoft Docs
ms.custom
ms.date	09/18/2017
ms.prod	sql-non-specified
ms.prod_service	database-engine, sql-database, sql-data-warehouse, pdw
ms.service
ms.component	t-sql|functions
ms.reviewer
ms.suite	sql
ms.technology	database-engine
ms.tgt_pltfrm
ms.topic	language-reference
f1_keywords	@@SPID @@SPID_TSQL
dev_langs	TSQL
helpviewer_keywords	@@SPID function session_id server process IDs [SQL Server] IDs [SQL Server], user processes SPID session IDs [SQL Server] process ID of current user process
ms.assetid	df955d32-8194-438e-abee-387eebebcbb7
caps.latest.revision	39
author	edmacauley
ms.author	edmaca
manager	craigg
ms.workload	On Demand

@@SPID (Transact-SQL)

[!INCLUDEtsql-appliesto-ss2008-all-md]

Returns the session ID of the current user process.

Transact-SQL Syntax Conventions

Syntax

@@SPID  

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';  

[!INCLUDEssResult]

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

Examples: [!INCLUDEssSDWfull] and [!INCLUDEssPDW]

This example returns the [!INCLUDEssDW] session ID, the [!INCLUDEssNoVersion] 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