total-read-transact-sql.md

title	@@TOTAL_READ (Transact-SQL)
description	@@TOTAL_READ (Transact-SQL)
author	MikeRayMSFT
ms.author	mikeray
ms.date	09/17/2017
ms.service	sql
ms.subservice	t-sql
ms.topic	reference
f1_keywords	@@TOTAL_READ_TSQL @@TOTAL_READ
helpviewer_keywords	number of disk reads disks [SQL Server], number of disk reads @@TOTAL_READ function total read [SQL Server] read activity since last started
dev_langs	TSQL

@@TOTAL_READ (Transact-SQL)

[!INCLUDE SQL Server Azure SQL Managed Instance]

Returns the number of disk reads, not cache reads, by [!INCLUDEssNoVersion] since [!INCLUDEssNoVersion] was last started.

:::image type="icon" source="../../includes/media/topic-link-icon.svg" border="false"::: Transact-SQL syntax conventions

Syntax

@@TOTAL_READ  

Return Types

integer

Remarks

To display a report containing several [!INCLUDEssNoVersion] statistics, including read and write activity, run sp_monitor.

Examples

The following example shows returning the total number of disk read and writes as of the current date and time.

SELECT @@TOTAL_READ AS 'Reads', @@TOTAL_WRITE AS 'Writes', GETDATE() AS 'As of';  

[!INCLUDEssResult]

Reads       Writes      As of                   
----------- ----------- ----------------------  
7760        97263       12/5/2006 10:23:00 PM   

See Also

sp_monitor (Transact-SQL)
System Statistical Functions (Transact-SQL)
@@TOTAL_WRITE (Transact-SQL)