total-read-transact-sql.md

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@@TOTAL_READ (Transact-SQL)	@@TOTAL_READ (Transact-SQL)	MikeRayMSFT	mikeray	09/17/2017	sql	t-sql	reference	@@TOTAL_READ_TSQL @@TOTAL_READ	number of disk reads disks [SQL Server], number of disk reads @@TOTAL_READ function total read [SQL Server] read activity since last started	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)