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Johannes Ahrends
Oracle Expert |  | Johannes Ahrends is an Oracle database specialist at Quest Software and a recognized Oracle expert with more than 15 years of experience as an Oracle DBA and consultant. Johannes began his computing career in 1987 as a Unix system consultant at Nixdorf and later Sony Europe. In 1992 Johannes joined Oracle as a presales consultant, first focusing on Oracle Reports and Forms and later moving over to DBA consulting, becoming an expert in high availability architectures including Oracle Parallel Server, performance tuning and database management with Oracle Enterprise Manager. After 6 years in presales at Oracle, Johannes left in 1999 to gain experience in implementations, working as a consultant for a small company named Herrmann & Lenz Services, which is well known as a specialist for Oracle performance tuning, high availability including Data Guard and RAC, troubleshooting, and training. In this position he also became familiar with Quest tools like Toad, I/Watch, Spotlight and especially SharePlex.
Together with former colleagues he has published two German Oracle books: Oracle9i für den DBA and Oracle 10g für den DBA. Both of them became the most popular Oracle Books in Germany. With this background Johannes has done a large variety of presentation at the German Oracle User Group (DOAG) conferences and local seminars. |
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