लेखक: Alex Nuijten

​Alex Nuijten is an independent consultant specializing in Oracle database development with PL/SQL and Oracle Application Express (APEX). Besides his consultancy work, he conducts training classes in APEX, SQL, and PL/SQL. He is a speaker at numerous international conferences, such as ODTUG, Oracle Open World, Hr OUG, UKOUG, IOUG, OUGF, BGOUG, NLOUG APEX World, OBUG, and many more. He has received several Best Speaker awards and writes at regular intervals about Oracle Application Express and Oracle database development on his blog “Notes on Oracle.” He is co-author of Oracle APEX Best Practices and Real World SQL and PL/SQL. Because of his contributions to the Oracle community, Alex was awarded the Oracle ACE Director membership in August 2010. Patrick Barel is a PL/SQL developer for Qualogy in The Netherlands. Besides working with SQL and PL/SQL Developer, he has written different plug-ins for PL/SQL. He publishes articles on his own blog and on the Qualogy blog. He is a speaker at international conferences, such as ODTUG, UKOUG, AUSOUG, NZOUG, IOUG, OUGN, NLOUG, DOUG, Hr OUG, and many more. Patrick was awarded the Oracle ACE membership. In 2015, he received the Oracle Developer Choice Award in the PL/SQL Category. In 2019, he was promoted to Oracle ACE Director.