Mike Sijmons started working with databases in the late 80thies. First as a developer and later as a DBA, consultant, architect and trainer. In 1996 he founded his own company Nibble-IT. Nibble-IT was specialized in embedding RDBMS system within large logistic and financial companies. In 2000 Nibble-IT made the switch to Open Source databases. Today Mike advices large organizations in implementing Open Source RDBMS solutions in comparison to Closed Sources solutions. Mike has been a trainer for more than 20 years for various database vendors and training companies and likes the combination of doing projects and being a teacher.