Beda Hammerschmidt, Consulting Member of Technical Staff
Beda is the brains and fingers behind XML and JSON support in Oracle Database.
Steven Feuerstein, Developer Advocate for PL/SQL
Steven Feuerstein leads a team of Developer Advocate at Oracle Corporation, and is obsessed with the Oracle PL/SQL language, having written ten books on it (all published by O'Reilly Media). He's published over 1400 quizzes on PL/SQL at the Oracle Dev Gym.