Free Sample Lectures These are free extracts of SQL University.net courses covering a variety of topics. FlashBack Database (Dan Morgan) (opens in new window) Instructional video on using FlashBack to return the database to a point in the past using either the SCN (system change number) or a specified time. FlashBack Drop (Dan Morgan) (opens in new window) Instructional video on using FlashBack to recover a dropped table. FlashBack Query (Dan Morgan) (opens in new window) Instructional video on using FlashBack to run queries against the database at any specific time in the past. Date Functions Demystified (Dan Morgan) (opens in new window) Instructional video on working with some of the various date functions in Oracle 10g and 11g. Intersecting Entities (Jack Cline) (opens in new window) What are Intersecting Entities, and why would you use them? Thinking In Sets (Joe Celko) (opens in new window) The fantastic "Thinking In Sets" lecture by Joe Celko. Three Programming Tricks (Joe Celko) (opens in new window) Joe Celko's "Three Programming Tricks" lecture. Intro to Java I (Dr. Steven Lewis) (opens in new window) Instructional video by Dr. Steven Lewis, Java Basics, Part 1. Intro to Java II (Dr. Steven Lewis) (opens in new window) Instructional video by Dr. Steven Lewis, Java Basics, Part 2. You will need the free RealMedia Player installed to view these courses. Windows | Linux | Macintosh