About: http://webisa.webdatacommons.org/411321888

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	The advantage of bitmap index are greatest for low cardinality columns i.e, if the values in a column are repated more than a hundred times, the column is a candidate for a bitmap index
http://www.w3.org/ns/prov#wasQuotedFrom	dbasupport.com