Geeks With Blogs
Saqib Ullah BootStrapper Know How February 2013 Entries
What is Database Cardinality
I have found very nice definition of Cardinality and its types.DefinitionIn SQL (Structured Query Language), the term cardinality refers to the uniqueness of data values contained in a particular column (attribute) of a database table. The lower the cardinality, the more duplicated elements in a column. Thus, a column with the lowest possible cardinality would have the same value for every row. SQL databases use cardinality to help determine the optimal query plan for a given query. Values of CardinalityWhen ......

Posted On Friday, February 22, 2013 8:25 PM

Copyright © Saqib Ullah | Powered by: GeeksWithBlogs.net