rds SQL数据的相关内容

阿里云文档 2025-04-28

RDS SQL Server冷热数据分离最佳实践

本文介绍了通过RDS云盘实现数据存储结构优化和冷热数据分离的实践方案。适用于数据量庞大、对成本敏感或对数据访问性能有分层需求等业务场景。冷热数据分离不仅能有效降低存储成本，还能确保关键数据的快速访问，优化资源利用。通过将低频访问的冷数据归档至成本更低的对象存储服务OSS，同时将高频访问的热数据保留在云盘上，从而达到数据管理的成本效益和高效率。

阿里云文档 2025-04-17

通过Spark SQL读写SQL Server数据

云原生数据仓库 AnalyticDB MySQL 版支持提交Spark SQL作业，您可以通过View方式访问自建SQL Server数据库或云数据库 RDS SQL Server 版数据库。本文以云数据库 RDS SQL Server 版为例，介绍如何通过Spark SQL访问SQL Server数据。

阿里云文档 2025-03-24

通过Spark SQL读DLF管理的数据

数据湖构建 DLF（Data Lake Formation）提供了统一的元数据管理、统一的权限与安全管理、便捷的数据入湖能力以及一键式数据探索能力，您可以在云原生数据仓库 AnalyticDB MySQL 版中通过Spark SQL访问DLF中的元数据。

阿里云文档 2025-01-10

使用SQL查询存在数据延迟问题

问题现象在新增或更新数据后，使用SQL查询数据时无法立即获取最新数据，存在一定的延迟现象。可能原因在为数据表创建多元索引后，使用SQL查询数据时，如果多元索引包含SQL中涉及的所有数据列，则SQL引擎将自动选择该多元索引进行数据查询。更多信息，请参见索引选择策略。索引选择策略而多元索引中的数据可能存...

阿里云文档 2024-08-16

通过Spark SQL读写AWS S3外表

本文主要介绍如何在云原生数据仓库 AnalyticDB MySQL 版（AnalyticDB for MySQL）中使用Spark SQL读写AWS S3中的数据。

问答 2024-06-16 来自：开发者社区

RDS SQL Server自治服务的空间管理TOP20表格没有数据

问答 2024-06-13 来自：开发者社区

如何通过API调用RDS生成http api并返回sql数据

文章 2022-12-15 来自：开发者社区

背景描述最近遇到多次业务方，反馈数据写入成功，但是需要查询使用时，数据确找不到了，所以需要确认数据什么不见了？排查方案通过应用排查数据是否写入成功。通过应用确认每次都是写入成功.而且写入后，进行查询都是有数据的。通过主键自增确认写入过数据。确认主键自增都是有的，但是最后数据不见了。查看binlog是否有提交记录。确认binlog中没有相应的提交记录，说明最终没有提交成功。通过SQL洞察和审计最终....

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云数据库 RDS SQL Server 版

云数据库SQL Server，具有企业许可授权，权限更为开放，引擎功能更为强大。能完美支持Windows平台的.NET架构，支持复杂SQL查询，性能优秀，并有强大的可视化管理工具，帮助您轻松管理数据。

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