云数据库数据库区别的相关内容

阿里云文档 2025-10-21

PSL4和PSL5两种存储类型有什么区别,如何使用

PSL4和PSL5是PolarDB为不同业务场景所提供的存储类型，两者在价格、数据可靠性及性能方面均存在部分差异。本文为您介绍这两种存储类型的区别，帮助您决策如何选择。

阿里云文档 2025-04-28

RDS倚天版和标准版的区别

为了进一步降低用户成本，云数据库RDS推出倚天版实例和标准版实例，ARM实例已被纳入倚天版实例。

阿里云文档 2025-02-20

逻辑备份、物理备份与快照的区别

本文介绍逻辑备份、物理备份与快照的区别，以及使用数据灾备控制台创建备份计划时如何选择备份方式。

阿里云文档 2024-02-06

云数据库RDS MariaDB存储类型的区别及选购建议

云数据库RDS MariaDB提供了ESSD云盘、SSD云盘两种存储类型，本文介绍这两种存储类型的基本信息及选购建议。

阿里云文档 2023-09-03

触发器和规则系统规则vs触发器有哪些区别？_云原生数据库PolarDB PostgreSQL版（兼容Oracle）_云原生数据库 PolarDB(PolarDB)

许多触发器可以干的事情同样也可以用PostgreSQL规则系统来实现。目前不能用规则来实现的东西之一是某些约束，特别是外键。可以放置一个合格的规则在一列上，这个规则在列的值没有出现在另一个表中时把命令重写成NOTHING。但是这样做数据就会被不声不响地丢弃，因此也不是一个好主意。如果要求检查值的有效性，并且在出现无效值的情况下应该生成一个错误消息，这种需求就必须要用触发器来完成。

问答 2023-01-09 来自：开发者社区

云数据库Memcache版&云数据库RDS版有何区别

1.当前系统购买的云数据库RDS版本，进行秒杀活动时，发现在RDS，CPU使用率达到了90%2.在网上看到了帖子建议用云数据库Memcache版3.是否还有其它办法

问答 2022-04-02 来自：开发者社区

云数据库RDS和普通数据库的区别是什么？

请问下各位大神：云数据库RDS和普通数据库的区别是什么？优势是什么呢？多谢了。

问答 2022-03-30 来自：开发者社区

云数据库与自建数据库在维护成本方面的区别是什么？

云数据库与自建数据库在维护成本方面的区别是什么

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更新时间 2024-07-25 16:38:53

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