Heli HelskyahoHeli Helskyaho has a master's degree in computer science from Helsinki University and specializes in databases. Heli is also an Oracle ACE director and has been a frequent speaker at many conferences. She has worked in IT since 1990 and with Oracle poducts since 1993. She has been in several positions, but each role has always included database design. Heli has been an Oracle Designer user since 1996 and a Oracle SQL Developer Data Modeler user since 2010. Heli is an active member in Oracle user groups community, including Oracle User Group Finland as well as EMEA Oracle user groups community (EOUC) where she has served as their spokesperson/ambassador since 2007. Heli is also the CEO for Miracle Finland Oy. Heli believes that creating good database design and documentation reduces performance problems and makes solving them easier. You can follow her on Twitter @helifromfinland or read her blog on helifromfinland.wordpress.com. Read More Read Less