Sequence Project Showplan Operator sequence mapping operators

Sequence Project Showplan Operator sequence mapping operators

The sequence map operator performs the calculation from a sorted collection by adding the columns in the collection.

The operator divides the input collection into multiple fragments based on the values of one or more columns. The operator then outputs one fragment at a time.

These columns are displayed as parameters in the sequence mapping operator.

SQL Server supports four types of functions: RANK, Dense_rank, row_number, NTILE

The sequence map generates an execution plan with ( a sequence map ) and ( two fragments )

The Sequence Project operator adds columns to perform computations over an ordered set. It divides the input set into segments based on the value of one or more columns. The operator then outputs one segment at a time. These columns is shown as arguments in the Sequence Project operator.

Microsoft SQL Server supports four types of functions: RANK, Dense_rank, row_number, and NTILE. Sequence Projectwill generate plans that has a Sequence Project and generally both segments.

Sequence Project is a physical and a logical operator.

https://msdn.microsoft.com/en-us/library/ms187041 (v=sql.105). aspx

Sequence Project Showplan Operator sequence mapping operators