在他看来,该问题是因为在定义数据模型时缺乏数学严谨性(一些数据库模型没有任何严谨性)。
The problem, from his point of view, was a lack of mathematical rigor in defining the data model (some database models had no rigor whatsoever).
年代,E . F . Codd与其他一些人通过严格的数学工作创造了现在无处不在的关系数据库模型。
In the 1970s, the rigorous mathematical work of E. F. Codd and others created the now-ubiquitous relational database model.
我应该会在2010年毕业。我的研究领域包括:数据库、数据挖掘、安全、社会网络、互联网应用以及数学和其他。
My research areas include, but are not limited to, databases, data mining, security, social networks, Internet applications and some mathematics.
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