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Flink最佳实践

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问答 2025-02-12 来自：开发者社区

Flink-CDC同步oracle数据，为什么要授予FLASHBACK权限?

Flink-CDC同步oracle数据，为什么要在oracle中授予对应表的FLASHBACK权限呢？官方给出的示例授权语句：GRANT FLASHBACK ANY TABLE TO flinkuser;在全量同步阶段或者增量同步阶段，需要闪回权限吗？客户提出这个问题，担心授予闪回权限导致数据不一致。我在网络上也没找到类似的回答。望各位大佬解答疑惑！

问答 2023-10-31 来自：开发者社区

有没有人使用过多个flink任务直接给一个目标表批流同步数据，这种数据和表权限会不会锁表？

问答 2023-10-31 来自：开发者社区

flink cdc同步oracle数据，或者有没有别的需求权限更小的准实时同步方式？

flink cdc同步oracle数据，需求是增量同步不需要历史的。原表只有insert没有update，所以不需要变更数据。某些权限可以不要吗，尤其是图中两个。或者有没有别的需求权限更小的准实时同步方式？

问答 2023-10-31 来自：开发者社区

Flink CDC不读历史数据，增量读取新数据也必须要有这个lock table的权限吗？

Flink CDC不读历史数据，增量读取新数据也必须要有这个lock table的权限吗。能否避免掉这个权限呢？

问答 2022-10-30 来自：开发者社区

flink cdc读取oracle数据，需要的最小权限列表是什么，DBA反馈给的权限过大，不同意这么

flink cdc读取oracle数据，需要的最小权限列表是什么，DBA反馈给的权限过大，不同意这么弄

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更新时间 2025-02-13 12:08:56

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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

产品控制台

产品文档

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