Luis Cazares (2/17/2014)
You could also invest and buy a book as many people like to do. I haven't bought one for T-SQL, so I'm not sure which one I could recommend.
T-SQL Fundamentals by Itzik Ben-Gan
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability