It is a very good coverage of SQL standard, but I didn't like the style of writing. Just like many SQL books you have to spend some time looking at the sample database in order to understand the concept.This to me is a waste of time and annoying.The difference is clear if you compare it to other books like Date's "Introduction to Database Systems".
Ссылка удалена правообладателем ---- The book removed at the request of the copyright holder.