Tony Hasler spends most workdays tuning database queries for financial institutions in the City of London from his office in Fife, occasionally looking over the Firth of Forth towards Edinburgh castle.  Tony spent the first half of his 30 years in IT developing software, during some of which time he worked with the International Standards Organization (ISO) on interoperability standards in transaction processing.  He also filed a patent on optimisations in two-phase-commit logging mechanisms.  For most of the last 15 years Tony has been solving performance issues for major financial institutions throughout Europe.  He is a regular speaker at UK Oracle User Group conferences.  

He is the author of "Expert Oracle SQL: Optimization, Deployment, and Statistics."

Tony blogs regularly at