笔记云数据库 ClickHouse数据的相关内容

文章 2024-06-09 来自：开发者社区

【DDIA笔记】【ch2】数据模型和查询语言 -- 文档模型中Schema的灵活性

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文章 2024-06-08 来自：开发者社区

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多对一和多对多是一个对比各种数据模型的切入角度。 region在存储时，为什么不直接存储纯字符串：“Greater Seattle Area”，而是先存为region_id -> region name，其他地方都引用region_id？统一样式：所有用到相同概念的地方都有相同的拼写和样式避免歧义：可能有同名地区易于修改：如果一个地区改名了，我们就不用去注意修改所...

文章 2024-06-07 来自：开发者社区

【DDIA笔记】【ch2】数据模型和查询语言 -- 关系模型与文档模型

关系模型与文档模型关系模型关系模型式当今最流行的数据库模型，统指这一类数据库，特点如下：将数据以关系呈现给用户（比如：一组包含行列的二维表）提供操作数据集合的关系算子常见分类：事务型（TP）：银行交易、火车票分析型（AP...

文章 2022-02-17 来自：开发者社区

Mongodb Manual阅读笔记：CH3 数据模型(Data Models)

3数据模型(Data Models) Mongodb Manual阅读笔记：CH2 Mongodb CRUD 操作Mongodb Manual阅读笔记：CH3 数据模型(Data Models)Mongodb Manual阅读笔记：CH4 管理Mongodb Manual阅读笔记：CH5 安全性Mongodb Manual阅读笔记：CH6 聚合Mongodb Manual阅读笔记：CH7 索引.....

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