Alex Nuijten works as a key consultant for Ordina Oracle Solutions in the Netherlands. Besides his consultancy work, he conducts training classes, mainly in SQL and PL/SQL. Alex has been a speaker at numerous international conferences, such as ODTUG, Oracle OpenWorld, UKOUG, IOUG, OUGF, OGH, and OBUG. He was part of the Nordic ACE Directors Tour in 2012. He is also a frequent contributor at the Oracle Technology Network forum for SQL and PL/SQL. He wrote many articles in Oracle-related magazines, and at regular intervals he writes about Oracle Application Express and Oracle database development on his blog "Notes on Oracle" (nuijten.blogspot.com). Alex is co-author of the book Oracle APEX Best Practices. In August 2010, Alex was awarded Oracle ACE Director membership.