@@TOTAL_READ (Transact-SQL)

**APPLIES TO:** ![yes](media/yes.png)SQL Server (starting with 2008) ![no](media/no.png)Azure SQL Database ![no](media/no.png)Azure SQL Data Warehouse ![no](media/no.png)Parallel Data Warehouse

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

Topic link icon Transact-SQL Syntax Conventions

Syntax

  
@@TOTAL_READ

Return Types

integer

Remarks

To display a report containing several SQL Server 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';

Here is the result set. 

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)](../../t-sql/functions/total-write-transact-sql.md)