Nathan took DBA University's SQL PL/SQL Training and recently passed the Oracle SQL Certification exam. He also took our Oracle DBA Training course.
DBA University provides the Oracle SQL Training and Oracle PLSQL Training online course in 11g and 12c for 60 hours with remote lab access and a 350+ pages ebook. Basic and advance topics are covered. Many topics for 1Z0-051 exam and 1Z0-144 exam for Oracle Certified Associate (OCA) are also covered.