Join selection factor
This article provides insufficient context for those unfamiliar with the subject. Learn how and when to remove this template message)(October 2009) (
O'Connell defines join selection factor as "[t]he percentage (or fraction) of records in one file that will be joined with records of another file". This can be calculated when two database tables are to be joined. It is primarily concerned with query optimisation.
- O'Connell, S. (2005) Advanced Databases Course Notes, Southampton, University of Southampton, section 5.10
|This computer science article is a stub. You can help Wikipedia by expanding it.|