Top N Sort Showplan Operator

Top N Sort is similar to the Sort iterator, except that only the first N rows are needed, and not the entire result set. For small values of N, the SQL Server 2005 query execution engine attempts to perform the entire sort operation in memory. For large values of N, the query execution engine resorts to the more generic method of sorting to which N is not a parameter.

See Also


How to: Display an Actual Execution Plan


Sort Showplan Operator


Logical and Physical Operators Reference
Displaying Execution Plans by Using the Showplan SET Options (Transact-SQL)

Help and Information

Getting SQL Server 2005 Assistance