pi-transact-sql.md

description	PI (Transact-SQL)
title	PI (Transact-SQL) | Microsoft Docs
ms.custom
ms.date	03/03/2017
ms.prod	sql
ms.prod_service	database-engine, sql-database, sql-data-warehouse, pdw
ms.reviewer
ms.technology	t-sql
ms.topic	reference
f1_keywords	PI_TSQL PI
dev_langs	TSQL
helpviewer_keywords	constant value of PI PI function
ms.assetid	d7c4575b-ba1c-4ef7-a633-9a379d7f01fd
author	julieMSFT
ms.author	jrasnick
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)