实时计算 Flink版cdc sql任务数据的相关内容

阿里云文档 2026-01-05

阿里云Flink SQL如何基于SPL实现弱结构化分析

本文介绍Flink SQL基于SPL实现弱结构化分析的操作步骤。

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如何在阿里云实时计算Flink版上通过Flink SQL以Paimon REST访问DLF Catalog。

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本文介绍如何在阿里云Flink中通过Iceberg REST与DLF Catalog对接，包括创建Catalog和执行查询的完整流程

本文为您介绍如何在阿里云实时计算Flink版上实现Flink SQL 以Iceberg REST与DLF Catalog对接。

阿里云文档 2025-09-01

Flink SQL Join快速入门

Flink SQL支持在动态表上进行复杂的连接操作，提供多种查询语义和join类型。使用时需避免引发笛卡尔积，因为Flink SQL不支持这种操作，会导致查询失败。默认情况下，join顺序未优化。为提高性能，可在FROM子句中调整表顺序，将更新频率最低的表放在前面，最高的放在后面。

阿里云文档 2025-04-22

阿里云Flink SQL如何基于SPL实现行过滤与列裁剪

本文介绍Flink SQL用SPL完成行过滤与列裁剪的操作步骤。

问答 2024-08-07 来自：开发者社区

在Flink CDC中,flink sql任务同步mysql数据时，可能是什么原因?

在Flink CDC中,flink sql任务同步mysql数据时，taskmanager日志中存在报错，但是任务没挂，全量数据也没同步到upsert-kafka中，请问大佬们可能是什么原因?

问答 2023-07-13 来自：开发者社区

请教个Flink CDC问题啊，oracle cdc sql任务 ,源表1亿条数据，现在全量阶？

请教个Flink CDC问题啊，oracle cdc sql任务 ,源表1亿条数据，现在全量阶段一直没有数据写入到目标库，貌似卡住了，在哪可以看到全量的进度或者日志吗？

问答 2023-01-16 来自：开发者社区

目前用flink oracle cdc sql，任务无报错，但是没有数据输出，为什么？

目前用flink oracle cdc sql，任务启动运行正常，无报错，但是select * from 表名，就是没有数据输出，有没有大佬可以指点一下？

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更新时间 2024-08-08 13:11:28

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实时计算Flink版

阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，完全兼容开源的Apache Flink，比开源性能提升2～3倍，提供了完整的告警、监控、日志的解决方案、提升开发效率且无运维成本，并有社区专家提供技术支持。

立即开通

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实时同步

MySQL 到 Hologres

Kafka 到 Hologres

功能对比

开源Flink对比

成本优化

作业自动调优