[2] 数据库系统基础;Database System Concept (中文版也可以),A穿胆扁感壮啡憋拾铂浆braham Silberschatz,机械工业出版社.
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Suffice it to say that anyone wanting to create a database system must be familiar with the concept of normalization.
任何想要创建数据库系统的人们必需熟悉标准化的概念,只要说明这个就够了。
To overcome this restriction and to maximize the flexibility of a relational database system, DB2 V9.5 introduces the concept of global variables.
为克服这种约束并最大化实现关系数据库系统的灵活性,DB2 V9.5 引入了全局变量的概念。
SQLite has no concept of user accounts, and instead relies on the file system for all database permissions.
SQLite没有用户帐户概念,而是根据文件系统确定所有数据库的权限。
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