pi-transact-sql.md

title	PI (Transact-SQL)
description	PI (Transact-SQL)
author	MikeRayMSFT
ms.author	mikeray
ms.reviewer
ms.date	03/03/2017
ms.prod	sql
ms.prod_service	database-engine, sql-database, synapse-analytics, pdw
ms.technology	t-sql
ms.topic	reference
ms.custom
f1_keywords	PI_TSQL PI
helpviewer_keywords	constant value of PI PI function
dev_langs	TSQL
monikerRange	>= aps-pdw-2016 || = azuresqldb-current || = azure-sqldw-latest || >= sql-server-2016 || >= sql-server-linux-2017 || = azuresqldb-mi-current

PI (Transact-SQL)

[!INCLUDE sql-asdb-asdbmi-asa-pdw]

Returns the constant value of PI.

Transact-SQL Syntax Conventions

Syntax

PI ( )  

[!INCLUDEsql-server-tsql-previous-offline-documentation]

Return Types

float

Examples

The following example returns the value of PI.

SELECT PI();  
GO  

[!INCLUDEssResult]

------------------------  
3.14159265358979  
  
(1 row(s) affected)  

See Also

Mathematical Functions (Transact-SQL)