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@@TOTAL_READ (Transact-SQL)

Applies To: SQL Server 2014, SQL Server 2016 Preview

Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).

Returns the number of disk reads, not cache reads, by SQL Server since SQL Server was last started.

Applies to: SQL Server (SQL Server 2008 through current version).

Topic link icon Transact-SQL Syntax Conventions

@@TOTAL_READ

To display a report containing several SQL Server statistics, including read and write activity, run sp_monitor.

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';

Here is the result set.

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

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