1NF:第一范式
在学术与科学领域,尤其是数学和数据库相关学科中,“First Normal Form”是一个基础且重要的概念。为了方便书写和交流,人们通常将其缩写为“1NF”。它在中文中被称为“第一范式”,主要用于描述关系型数据库中数据规范化的一个基本层级。掌握这一概念有助于更好地进行数据库结构设计,避免数据冗余,提升数据存储的效率和一致性。
First Normal Form的英文发音
例句
- Modern Chinese Dictionary ( MCD for short ) is regarded as the first normal form Chinese dictionary, and its authority has already been proved by time and practice.
- 《现代汉语词典》(以下简称《现汉》)是中国第一部规范型现代汉语词典,其权威性早已经过时间和实践的检验。
- In this paper, first we study normal form theory with Z2-symmetry and universal unfolding theory of the degenerate vector field.
- 在本文里我们首先研究了具有Z2-对称性的范式理论和退化向量场的普适开折理论。
- This thesis has analyzes the current situation of convention and exhibition industry in our country at first, using SCP normal form in the industrial organization theory to study market structure, enterprise's behavior and market performance of the exhibition industry.
- 本文首先分析了我国的会展产业现状,运用产业组织理论中的SCP范式对我国会展业的市场结构、企业行为和市场绩效进行了分析研究。
- First, the concept of fuzzy equivalent normal form is proposed in order to express the solutions.
- 首先提出了Fuzzy等价标准型的概念,为解的表达提供了工具;
- Most experts would suggest that designers strive to follow the first three rules, so that the data is said to be in third normal form.
- 大多数专家都会建议设计者尽量遵从前三条规则,由此得到的数据就可以说是符合第三范式。
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