The best resources for SQL?
I have a foundation in SQL, but I'm looking to take my proficiency to the next level. What resources would you suggest for better understanding SQL and becoming more efficient/effective?
Books, blogs, etc. Anything would be great! And these are some links I've been looking at/considering: http://www.amazon.com/Advanced-Oracle-SQL-Programming-Focus/... http://www.amazon.com/Pro-Oracle-SQL-Karen-Morton/dp/1430232... http://www.amazon.com/SQL-Antipatterns-Programming-Pragmatic... http://www.amazon.com/Joe-Celkos-Smarties-Fourth-Edition/dp/...