| 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 @Index annotation in code or the <index> element in the orm.xml desciptor to create an index on a table and to have EclipseLink's DDL generator generate it.+Use the [http://www.eclipse.org/eclipselink/api/latest/org/eclipse/persistence/annotations/Index.html <tt>@Index</t
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