On Tue, Oct 16, 2012 at 16:24:08 -0300,
Thalis Kalfigkopoulos <tkalfigo@gmail.com> wrote:
>
>Also IMHO another difficulty the manual poses is that the reader doesn't
>have a way to confirm his level of understanding after reading a
>chapter.
It isn't too hard to play with a toy database. I personally found (and still
find) the Postgres manual to be a great resource for learning SQL.