哪些数据库是免费的?

March 25,2004

MySQL
  http://www.mysql.com/

GNU SQL Server
  http://www.ispras.ru/~gsql/

PostgreSQL
  http://www.postgresql.org/

mSQL (Mini SQL)
  http://www.hughes.com.au/

cdb
  http://cr.yp.to/cdb.html

DiamondBase
  http://www.csse.monash.edu.au/~darrenp/diamondbase.html

原作者：不详
来源：LinuxAid