Welcome

Welcome! This site contains links to material relevant to my professional life. I'm an IT professional with experience in a range of disciplines and technologies but probably best known for my involvement in databases such as CockroachDB, MongoDB, Oracle and MySql and for my work on emerging database and Blockchain technologies.

I’m currently employed at OneSpan, who recently acquired the ProvenDB - a blockchain-enabled database service - technology that I founded at Southbank Software.

I'm the author of CockroachDB Definitive Guide, MongoDB Performance Tuning, Architecting Distributed Transactional Applications, Next Generation Databases,  Oracle Performance Survival Guide, MySql Stored Procedure Programming (with Steven Feuerstein), Oracle SQL High Performance Tuning, as well as contributing to several other books on database technology. I write monthly columns at Database Trends and Applications and more occasional articles elsewhere. 

My blog contains occasional contributions of a technical nature and I can be contacted by email at guy.a.harrison@gmail.com.  I'm @guyharrison on twitter.

I live in Melbourne Australia with my wife Jenny in beautiful Kingsville.    Our adult children Chris, Kate, Emily, Sean, Erin and Michael and their partners, dogs, cats and killer rabbits live nearby. 

In my spare time I worry about what on earth I'd do if I ever had any spare time.