Oracle Text

http://www.devx.com/dbzone/Article/21563/1954


http://www.techxplore.net/2008/03/05/oracle-text-ctxsys-context-index-type-not-showing-search/
http://www.dbasupport.com/oracle/ora11g/Oracle-Text.shtml
http://download.oracle.com/docs/cd/E11882_01/text.112/e16593/toc.htm
http://download.oracle.com/docs/cd/E11882_01/text.112/e16594/overview.htm#CCAPP9001
http://download.oracle.com/docs/cd/E11882_01/text.112/e16594/quicktour.htm