I’m Oracle OCP 2019 DBA and Oracle ACE Pro since 2022.

25 years entirely dedicated to Oracle databases as a freelance consultant.

I also wrote a book named “Optimización SQL en Oracle” (Spanish) about SQL Tuning in Oracle, and you may have found me participating in Oracle podcasts, writing tech articles, helping other Oracle users in Experts Exchange, or as speaker in Oracle User groups community doing SQL magic tricks.

Now I’m leading the “Café Database” project.

Café Database is a “lounge place” for Oracle DBAs and Developers to chat and collaborate in our Discord server. I usually lead SQL tuning labs, café-talks with other Oracle experts (or non-only-oracle) in stage channels where people may join us and participate. All our talks end up in the Café Database podcast, in the GitHub site or in the YouTube channel (in Spanish).

I’m Oracle OCP 2019 DBA and Oracle ACE Pro since 2022. 25 years entirely dedicated to Oracle databases as a freelance consultant. I also wrote a book named “Optimización SQL en Oracle” (Spanish) about SQL Tuning in Oracle, and you may have fou... Show more

Oracle ACE with over 20 years of experience in Oracle and MySQL databases,
Huawei Cloud’s Most Valuable Professional,
Former database manager at IBM,
Holder of more than 20 Oracle certifications,
Inventor of two computer patents,
Author of the book MySQL 8.0 Operations and Optimization (ISBN: 9787302602682),
Served over 20,000 database clients.

Oracle ACE with over 20 years of experience in Oracle and MySQL databases, Huawei Cloud’s Most Valuable Professional, Former database manager at IBM, Holder of more than 20 Oracle certifications, Inventor of two computer patents, Author of ... Show more

CEO of JomaSoft (Oracle Gold Partner)
Providing SPARC/Solaris Consulting/Services and Products since 25 years.
Speaker at Oracle/Solaris User Groups, Events and Meetups worldwide.

Expertise: SPARC/x86 Server, Solaris, Datacenter, Network, Storage, ZFS, LDoms

Marcel lives in Switzerland/Europe

CEO of JomaSoft (Oracle Gold Partner) Providing SPARC/Solaris Consulting/Services and Products since 25 years. Speaker at Oracle/Solaris User Groups, Events and Meetups worldwide. Expertise: SPARC/x86 Server, Solaris, Datacenter, Network, Stora... Show more