maxcompute SQL数据的相关内容

阿里云文档 2025-11-19

如何通过Spark SQL读写RDS PostgreSQL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PostgreSQL数据库或云数据库 RDS PostgreSQL 版数据库。本文以RDS for PostgreSQL为例，介绍如何通过Spark SQL读写RDS for PostgreSQL数据。

阿里云文档 2025-11-11

调用RecoveryDBInstance恢复SQL Server备份数据至新实例或已有实例-云数据库 RDS-阿里云

该接口用于将RDS SQL Server备份数据恢复到已有实例或新实例上。

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...

文章 2024-07-19 来自：开发者社区

MaxCompute操作报错合集之使用sql查询一个表的分区数据时遇到报错，该如何解决

问题一：请问现在大数据计算MaxCompute任务中不支持decimal数据类型了吗？请问现在大数据计算MaxCompute任务中不支持decimal数据类型了吗？参考回答：这个是关的参数设置，新项目没有其他作业的话，可以设置一下，再跑一下mr任务看看。 DataWorks的SQL节点执行 setproject odps.sql.type....

文章 2024-06-23 来自：开发者社区

MaxCompute产品使用问题之如何使用MaxCompute SQL客户端删除分区数据

问题一：大数据计算MaxCompute Linux下+python3.10支持的最高PyODPS版本是多少？大数据计算MaxCompute Linux下+python3.10支持的最高PyODPS版本是多少？参考回答： Python3.10现在PyODPS还没适配过关于本问题的更多回答可点击原文查看：https://developer....

问答 2024-06-14 来自：开发者社区

MaxCompute通过SQL查询有数据通过Pyodps查不到数据

问答 2024-06-13 来自：开发者社区

MaxCompute spark SQL查询分区表数据报错java.lang.String c...

MaxCompute spark SQL查询分区表数据报错java.lang.String cannot be cast to java.lang.Integer

文章 2024-06-10 来自：开发者社区

MaxCompute产品使用合集之在sql里调用自定义的udf时，设置一次同时处理的数据行数，是并行执行还是串行执行的

问题一：大数据计算MaxCompute这个参数这里设置的一次同时处理的数据行数，是并行执行还是串行执行的？在sql里调用自定义的udf时候，设置odps.sql.executionengine.batch.rowcount大数据计算MaxCompute这个参数这里设置的一次同时处理的数据行数，是并行执行还是串行执行的？ ...

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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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