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@@TOTAL_READ (Transact-SQL)

  • Článek

Applies to: SQL Server Azure SQL Managed Instance

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

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's 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)