Providing user based previleges to Postgres DB

Hi All,

Currently in one of the projects we want to restrict the unauthorized users to the Postgres DB. Here we are using Postgres version 8.2.0

Can anybody tell me how can I provide the user based previleges to the Postgres DB so that, we can restrict the unauthorized users as well as porivde the access control to the users based on the set previleges by the administrator.

Thanks and Regards,
Ramac

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