Next class activities

https://docs.google.com/Doc?docid=0Ab4BbyC37KqPZGdtdDY3ajdfODlnbWp3dndmbg&hl=es

We are going to start with SQL language.
Something to read before starting
http://www.1keydata.com/sql/sql.html

http://www.techbookreport.com/sql-tut1.html