flink cdc数据数据库的相关内容

阿里云文档 2025-06-27

如何连接OLAP资源组访问数据

本文介绍通过OLAP资源组访问列存和宽表数据的方法。相比宽表引擎自带的SQL功能，OLAP资源组提供更完整的SQL分析能力，适用于海量数据的高并发分析场景。

阿里云文档 2025-06-20

将Bigtable数据迁移至Lindorm宽表

本文为您介绍如何将Bigtable数据迁移到Lindorm。

阿里云文档 2025-06-19

通过COPY命令进行数据导入或导出

通过COPY命令，可以将TXT、CSV等格式的文件导入到PostgreSQL中，同时也支持将PostgreSQL中的数据以CSV格式导出至指定文件。本文介绍在RDS PostgreSQL实例中，如何使用COPY命令进行数据的导入和导出。

阿里云文档 2025-06-18

迁移PostgreSQL数据至SelectDB

通过DTS、阿里云DataWorks、Flink CDC和Catalog均可将PostgreSQL（如自建PostgreSQL、RDS PostgreSQL和PolarDB PostgreSQL等）的数据迁移至云数据库 SelectDB 版。您可依据迁移的数据量和业务场景，选择合适的方式完成数据迁移。

阿里云文档 2025-06-12

查看数据灾备备份集

数据备份完成后，您可以通过备份集列表查看备份集，并对其进行管理、删除以及下载等操作。本文将介绍如何查看备份集。

问答 2024-06-05 来自：开发者社区

在Flink CDC中同步mysql数据时候相比MIXED 是不是产生更多日志，会对数据库有影响吗？

在Flink CDC中同步mysql数据时候 binlog_format=ROW，这个相比MIXED 是不是产生更多日志，会对数据库有影响吗？

问答 2024-05-07 来自：开发者社区

Flink CDC里使用同步mysql数据时无法指定需要的时区，只能按数据库本身的时区进行设置？

Flink CDC里使用同步mysql数据时无法指定需要的时区，只能按数据库本身的时区进行设置？多个实例时区不一致集成到一起的时候咋办？ flinkcdc3.0换成utc就报错，Caused by: org.apache.flink.table.api.ValidationException: The MySQL server has a timezone offset (28800 s.....

问答 2024-03-25 来自：开发者社区

Flink CDC里当 oracle 数据不开启整个数据库的补充日志，只开启单个表的，这个再启动吗？

flink oracle cdc 在访问 oracle 的时候，不开启整个库的补充日志，只开启了单个表的补充日志，现在在启动 cdc 的时候报错了：报错信息为：Supplemental logging not properly configured. Use: ALTER DATABASE ADD SUPPLEMENTAL LOG DATA。需要设置下哪个参数，可以不监听整个库的补充日志？

问答 2024-03-09 来自：开发者社区

flink cdc 3.0 整库同步数据，会导致业务数据库正常访问吗？比如被锁定，或者负载变高。

我现在使用的是flink cdc pipeline的方式，整库从mysql同步到StarRocks里面，首次全量是否会对mysql造成大量资源消耗，导致影响业务服务。

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更新时间 2024-06-06 17:59:57

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