The Database Design of Statistical & Analysis System of Quality Information about TV Panel

The design of relation model is core issue of the relation database. In theory, design of database schema meet the third normal form (3NF) is the best. But performance of the database schema that meet 3NF is not necessarily the best. In application, to design a database based on actual situation model, the model not only meet normal form, but also can not be too affected the performance of a database system. And whether to design an anti-standardization or what is the level of standardization or anti-standardization is reasonable, there are no specific reference standard and quantifiable criteria. These standard and criteria must combine with the specific circumstances of practical issues to get a tradeoff. In the process of developing the statistical analysis system, it is greatly improve performance of the database that anti-standardization operation on the standardized database.