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ECS和RDS的网络类型通常需要相同才能内网互通。您可以通过切换网络类型或者使用云企业网等方式使ECS可以内网连接RDS。

[帮助文档] 将经典网络平滑迁移到专有VPC上

为满足日益增多的网络迁移需求，RDS SQL Server提供了网络混访功能，可以实现在业务无访问中断的情况下将经典网络平滑迁移到VPC上。

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[帮助文档] RDS SQL Server经典网络实例停止新购通知

为了提供更加安全的云上网络环境和更好的云上用户体验，阿里云于2023年04月10日起，将停止售卖RDS SQL Server经典网络实例。

[帮助文档] 跨地域备份网络费用降价通知

RDS MySQL、RDS SQL Server、RDS PostgreSQL、PolarDB MySQL版跨地域备份网络费用于2023年05月26日降价。

PostgreSQL 10.1 手册_部分 II. SQL 语言_第 9 章函数和操作符_9.12. 网络地址函数和操作符

9.12. 网络地址函数和操作符表 9.36展示了可以用于cidr和 inet类型的操作符。操作符<<、<<=、 >>、>>=和 &&测试用于子网包含。它们只考虑两个地址的网络部分...

PostgreSQL 10.1 手册_部分 II. SQL 语言_第 8 章数据类型_8.9. 网络地址类型

8.9. 网络地址类型 8.9.1. inet 8.9.2. cidr 8.9.3. inet vs. cidr 8.9.4. macaddr 8.9.5. macaddr8 PostgreSQL提供用于存储 IPv4、...

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