cha_512x512Since 1995, Christian Antognini has focused on understanding how the Oracle database engine works. His main interests include logical and physical database design, the integration of databases with Java applications, the query optimizer and basically everything else related to application performance management. He is currently working as a senior principal consultant and trainer at Trivadis in Zürich, Switzerland.

If Christian is not helping one of his customers get the most out of Oracle, he is somewhere lecturing on application performance management or new Oracle Database features for developers. In addition to classes and seminars organized by Trivadis, he regularly presents at conferences and user-group meetings. He is a proud member of the OakTable Network and an Oracle ACE Director. Christian is the author of Troubleshooting Oracle Performance (Apress, 2008/2014) and the co-author of Der Oracle DBA (Hanser, 2011).

m2015Mike Dietrich has over twenty years experience in the information technology industry. Mr. Dietrich has spent the last seventeen years at Oracle Corporation where he has held senior and management roles in both the sales and support organizations. Currently, he is a Senior Principal Technologist in the Database Upgrade Development Group.

He is responsible for evangelizing, influencing and demonstrating Oracle technology solutions related to database upgrades, migrations and consolidation to Oracle customers and partners. Besides that he works consistently with customers in key reference projects, both onsite and remotely.

Mike Dietrich holds a graduate engineer degree of Georg-Simon-Ohm University of Appliend Sciences in Telecommunication Technologies and Computer Science. You’ll find more information on Mike’s blog.

speaker_face_joelperezJoel Perez is an Expert DBA ( Oracle ACE Director, OCM Cloud Admin. & OCM12c/11g ) with over 15 years of Real World Experience in Oracle Technology, specialized in design and implement solutions of: High Availability, Disaster Recovery, Upgrades, Replication, Cloud and all area related to Oracle Databases. International consultant with duties, conferences & activities in more than 50 countries ( Dubai, China, Singapore, Hong Kong, Japan,.. ) in 5 continents and countless clients around the world. Habitual and one of leading writers of Technical Oracle articles for: OTN Spanish & OTN Portuguese. Regular Speaker in Oracle events worldwide like: OTN LAD (Latin America), OTN MENA(Middle East & Africa), OTN APAC ( Asian Pacific), DTCC China and more. Joel has always been known for being a pioneer in Oracle technology since the early days of his career being the first Latin American awarded as “OTN Expert” at year 2003 by Oracle Corp., one of the first “Oracle ACE” globally in the Oracle ACE Program at year 2004, one of the first OCP Database Cloud Administrator worldwide at year 2013 and as one of the biggest professional achievement in his career, recently he was honored as one of the first “OCM Database Cloud Administrator” & “OCM 12c Database Administrator” in the world. Currently Joel works for one of the more famous company of Oracle Consulting in China “Yunhe Enmo (Beijing) Technology Co.,Ltd”

MarkRittmanMark Rittman is an Oracle ACE Director, co-founder and CTO of Rittman Mead, and author of two Oracle Press books on Oracle BI and engineered systems. Mark has worked with BI, data warehousing and more recently big data systems since 1997, is a regular contributor to Oracle Magazine and the Rittman Mead Blog, and speaks at user group and Oracle events around the world.

fritshoogland_200x200Frits Hoogland is an IT professional specializing in Oracle database performance and internals. Frits frequently presents on Oracle technical topics at conferences around the world. In 2009 he received an Oracle ACE award from the Oracle Technology Network and a year later became an Oracle ACE Director. In 2010 he joined the OakTable Network. In addition to developing his Oracle expertise, Frits works with PostgreSQL, and modern operating systems. Frits currently works at the Accenture Enkitec group.

Julian_DontcheffJulian Dontcheff leads the Accenture Enkitec Group and the Oracle Technology Group for Accenture’s EALA region (Europe, Middle East, Africa and Latin America). In this role, he is responsible for the Oracle Technology business, including Engineered Systems, encompassing sales, delivery, client satisfaction and profit/loss. Julian is also responsible for the complete Oracle portfolio in Finland, as Oracle Practice Lead for that country. Julian has more than 25 years of database experience. He was the first Oracle Certified Master in Europe, is currently an Oracle Certified Professional 8i-12c, and is an Oracle ACE Director. He has responsibility for 100+ clients worldwide. Julian is the approved spokesperson for Accenture on Oracle (e.g., video, magazine, interviews and blogs) and he authored the Accenture Technology Vision for Oracle.

kstawiarskiKamil Stawiarski is Oracle Database Whisperer, performance maker and story teller. At the moment probably one of the youngest Oracle ACEs and Oracle Certified Masters in the world. Owner of the ORA-600 company and blogger (blog.ora-600.pl). Trainer in Oracle Partner Academy and IT School. Personally a big fan of Terry Pratchett: “Wisdom comes from experience. Experience is often a result of lack of wisdom.”

Bjoern RostBjörn Rost is an Oracle ACE Director, and one of Pythian’s top Oracle experts. A popular presenter, Björn travels the world attending technology conferences, sharing insights, and learning with his wide network of peers. Björn also serves as president of IOUG’s RAC special interest group. He is always challenging himself, personally through physical activities including triathlons, and professionally through his ongoing quest to increase his knowledge of Oracle and other leading technologies.

Horia BercaHoria Berca has been an Oracle RDBMS technologist since 2005. Started as PL/SQL Developer, soon after made the transition to Performance Engineer and
then to Production DBA. Currently driving the adoption of Oracle Public Cloud PaaS services.
Oracle Certified Expert – Oracle Database 11g Performance Tuning
Oracle Certified Professional – Oracle Database 11g Administrator