| http://www.w3.org/ns/prov#value | - An index is a database structure defined for a table, to improve query and look-up performance for a set of columns. ???Use the [http://www.eclipse.org/eclipselink/api/latest/org/eclipse/persistence/annotations/Index.html <tt>@Index</tt>] annotation in code or the <tt><index></tt> element in the <tt>orm.xml</tt> descriptor to create an index on a table. +Use the [http://www.eclipse.org/eclipselink
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