Happy New Year! 

The January edition of TechNet Magazine is available on the web now and has the latest installment of my regular SQL Q&A column.

This month's topics are:

• Using backups for corruption recovery
• Why snapshot isolation is required when using change tracking, and its performance implications
• Is DBCC CHECKDB a really comprehensive integrity check?
• The difference between data file and log file shrinking

Check it out at http://technet.microsoft.com/en-us/magazine/ee914612.aspx.