Difference between Sql server 2000 and 2005
Difference between Sql server 2005 and 2008
Difference between Sql server 2008 and 2008r2
Difference between Sql server 2008 and 2012
Difference between Sql server 2005 and 2008
Difference between Sql server 2008 and 2008r2
Difference between Sql server 2008 and 2012