Want to test your knowledge some more?  Try these past Puzzlers:

• October 2008: Collections in PL/SQL
• September 2008: NULLs and Numeric FOR LOOPs
• August 2008: So many implicit cursors, so little time
• July 2008: Do you know Bulk Collect?
• June 2008: Do you know the autonomous transaction?
• May 2008: Do you know parameter lists?
• April 2008: Do you know NOCOPY?
• March 2008: Do you know built-in functions?
• February 2008: PL/SQL Knowledge Quiz
• January 2008: PL/SQL Knowledge Quiz
• December 2007: PL/SQL Knowledge Quiz
• November 2007: Be Selective with your SELECTs!
• October 2007: Error codes can be very puzzling
• September 2007: How to save $1 billion in expenses
• August 2007: The right Datatype for the job
• July 2007: The mysteries of CASE in PL/SQL
• May 2007: How many countries has Steven visited?
• February 2007: Writing Deterministic Programs
• January 2007: Where did Steven spend New Year's Eve?