逻辑SQL 的相关内容

阿里云文档 2025-03-14

RDS SQL Server逻辑备份与恢复

数据灾备可满足RDS SQL Server数据库的单表恢复、异地备份、长期归档等需求。本文介绍如何使用DBS实现RDS SQL Server数据库的自动逻辑备份与恢复。

阿里云文档 2025-02-21

逻辑数仓支持的SQL语法

逻辑数仓功能可以打通不同引擎，不同实例，跨区域，跨存储的OLAP、OLTP之间的壁垒，基于统一的SQL语法为用户提供跨库数据查询和数据同步的能力。本文介绍逻辑数仓支持的SQL语法。

文章 2024-08-15 来自：开发者社区

建模底层逻辑问题之ORM框架建模中，执行SQL的过程中被抽象和组织是如何实现的

问题一：ORM框架建模中，Mapper和配置信息分别代表什么？ ORM框架建模中，Mapper和配置信息分别代表什么？参考回答：在ORM框架建模中，Mapper代表SQL语句的抽象；配置信息则代表数据库的配置信息，如连接信息、表结构等。 ...

问答 2024-06-13 来自：开发者社区

Flink CDC里我们数据在阿里的RDS 上，现在逻辑是直接SQL 读取，数量多怎么办？

Flink CDC里我们数据在阿里的RDS 上，现在逻辑是直接SQL 读取，各种JOIN 之后在展示在BI上，如果后面数据量多的话，有没有好的建议。现在是想把RDS的数据同步到 DORIS 然后读DORIS 在做数据处理这个逻辑行不行？

文章 2024-02-29 来自：开发者社区

阿里云视觉智能开放平台的逻辑数仓基于统一的SQL语法

阿里云视觉智能开放平台的逻辑数仓基于统一的SQL语法，为用户提供跨库数据查询和数据同步的能力。逻辑视图支持的数据操作包括CREATE和DROP语句，但暂不支持ALTER、UPDATE、DELETE以及INSERT SELECT这类的语句。此外，逻辑数仓功能还可以打通不同引擎，不同实例，跨区域，跨存储的OLAP、O...

文章 2023-09-20 来自：开发者社区

逻辑数仓执行SQL查询时

在阿里云的DMS（Data Management Service）中，逻辑数仓执行SQL查询时，确实存在最大返回行数为100行的限制。这个限制主要是为了优化查询性能，避免因为返回大量数据而导致查询速度变慢。然而，这个限制并不是绝对的，对于一些特定的SQL查询，可以通过一些技巧来突破这...

阿里云文档 2023-09-03

逻辑解码的SQL接口有哪些复制管理函数_云原生数据库PolarDB PostgreSQL版（兼容Oracle）_云原生数据库 PolarDB(PolarDB)

本文介绍了逻辑解码的SQL接口。

问答 2023-08-21 来自：开发者社区

DMS逻辑数仓中执行SQL是否只能返回100行的限制，不管SQL怎么写逻辑数仓都只能返回100行？

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更新时间 2024-08-16 14:26:50

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