GreenSQL: database firewall
GreenSQL is an Open Source database firewall used to protect databases from SQL injection attacks. GreenSQL works as a proxy and has built in support for MySQL. The logic is based on evaluation of SQL commands using a risk scoring matrix as well as blocking known db administrative commands (DROP, CREATE, etc). GreenSQL provides MySQL database security solution. GreenSQL is distributed under the GPL license. http://www.greensql.net/

