Database servers are the most important servers your company owns. They store client details, financial information, human resource details — all the data that keeps your company in business and, as such, they need to be secure. This paper has been written to help database administrators, security professionals and risk framers understand the issues involved with database security and provide options and solutions when designing defensive strategies. The system structure of LogicSQL database and security strategy applications were described in this paper. It is independently developed based on the Linux high-level security database system.