About: http://webisa.webdatacommons.org/102013203

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A nonclustered index is most useful when the ratio is around 5 percent or less???that is, if the index can eliminate 95 percent of the rows from consideration.
http://www.w3.org/ns/prov#wasQuotedFrom	microsoft.com