One of the most exciting SQL features in Oracle Database 10g is support for regular expressions. Open source databases such as MySQL and PostgreSQL have supported regular expressions for years. Frankly, we were tired of having that thrown in our faces, of feeling one-upped by the open source competition. In the Oracle Database 10g release, Oracle has implemented regular expression support with a vengeance. We were surprised and delighted at what we found. You will be, too.