Introduction - If you have any usage issues, please Google them yourself
A. Demand Analysis System (Design/data flow diagram/data dictionary) B. database of information requirements (E-R diagram and relational data model) C. database operation and application requirements (module structure lt; Nothing study design and logic design gt;) D. Commissioning of the problems and solutions (physical design, debug, and the operation, maintenance) E. access to the database format (ODBC,