database.design.for.mere.mortals.3rd

数据库设计 People designing database systems at that time needed to have a solid educational background because most of the systems they created were meant to be used companywide. Even when creating databases for single departments within a company or for small businesses, database designers still required extensive formal training because of the complexity of the programming languages and database application programs they were using. As technology advanced, however, those educational requirements evolved.