专门数据库的相关内容

问答 2024-08-02 来自：开发者社区

【开源推荐】专门用作分析的一款高性能数据库

19.8k star,开源、免费、轻量、小巧、足够用的一款软件专门用作分析的一款高性能数据库，体积很小，功能强大，值得关注下 duckdb简介 DuckDB是一个开源的内嵌式SQL OLAP数据库管理系统，它以其高性能、易用性和丰富的功能而闻名。 DuckDB支持任意和嵌套的相关子查询，窗口函数，排序规则&#x...

文章 2022-11-12 来自：开发者社区

专门关系运算——关系数据库基础

一、选择运算从指定的关系中选择某些元组（对行进行运算）形成一个新的关系，被选择的元组是用满足某个逻辑条件来指定的二、投影运算对指定的关系选择列产生一个新的关系根据关系的性质结果中要去掉重复行三、连接运算连接相互之间有联系的两个关系连接过程一般是由参照关系的外部关键字和被参照关系的主关键字来控制的，这样的属性通常称为连接属性

问答 2022-04-02 来自：开发者社区

新手请问大家什么叫负载均衡？还有RDS是专门用来放数据库的吗？

大家别笑话啊，我只购买了ECS 对其他产品不了解。新手请问大家什么叫负载均衡？还有RDS是专门用来放数据库的吗？负载均衡的意思，应该是服务器的压力比极大（比如流量大的网站），分散掉一些压力？怎么分散掉的？还有,RDS是专门用来放数据的吗？网站的网页文件可以放在ECS，然后把MYSQL数据库放在RDS中，通过内网IP共享数据库，对吧？

文章 2022-02-17 来自：开发者社区

Netflix：为什么建立专门的媒体数据库？

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更新时间 2024-08-03 09:13:47

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