[ADMIN] License for PostgreSQL for commercial purpose

[Eric Yum]

Dear Sir   I am a developer of one commercial organization. We are going to develop some applications with PostgreSQL 7.3.3. I learn from some websites that it cost no charge for developing software with PostgreSQL in commercial environment. However, I saw the PostgreSQL is under two type of licenses, namely, X11-style license and BSD license for the following websites, http://www.postgresql.org/licence.html http://www.gnu.org/directory/database/servers/postgresql.html   Please kindly provide professional comment on this issue and suggest whether the use of PostgreSQL for commercial purpose is no license charge or not     Thanks & Best Regards, Eric Yum CK Life Sciences Ltd. Finance & Administration - IT Team Tel: 21261351