oracle open cursor issue

http://support.esri.com/es/knowledgebase/techarticles/detail/35090

python look around ahead regular expression

http://www.rexegg.com/regex-lookarounds.html

python regular expression

http://www.informit.com/articles/article.aspx?p=1278986

hibernate performance

http://www.laliluna.com/articles/java-persistence-hibernate/performance-tips-hibernate-java-persistence.html