Database design for simulation system of Qingjiang River flood control and cascade dispatching

An introduction is given to the design scheme for the database, in which the inner coding-outer coding transform technique is adopted for code management, and perfect tables for predicted result are designed, so as to ensure the correctness of input and output data and reliability of the operation of the system. Besides, the redundant technique is applied and multi-database operation mode is developed to improve the efficiency of the system. Furthermore, some functional modules, including database management, code management, data reorganization, and data query, are designed for the database system. Finally, some measures, such as the removal of redundant data, establishment of index mechanism, and adjustment of EMS memory and initial parameters, are taken for optimization of the database performance of the system.