摘要：
In a relational database, denormalization is an approach to speeding up read performance (data retrieval) in which the administrator selectively adds 阅读全文
摘要：
In creating a database, normalization is the process of organizing it into tables in such a way that the results of using the database are always unam 阅读全文
摘要：
Denormalization In computing, denormalization is the process of attempting to optimize the read performance of a database by adding redundant data or 阅读全文