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System Statistical Functions (Transact-SQL)

 

Applies To: SQL Server 2014, SQL Server 2016 Preview

The following scalar functions return statistical information about the system:

@@CONNECTIONS           

@@PACK_RECEIVED           

@@CPU_BUSY           

@@PACK_SENT           

fn_virtualfilestats           

@@TIMETICKS           

@@IDLE           

@@TOTAL_ERRORS           

@@IO_BUSY           

@@TOTAL_READ           

@@PACKET_ERRORS           

@@TOTAL_WRITE           

All system statistical functions are nondeterministic. This means these functions do not always return the same results every time they are called, even with the same set of input values. For more information about function determinism, see Deterministic and Nondeterministic Functions.

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