flink1.13架构全集实时计算 Flink版方方面面sql-阿里云

Flink1.13架构全集| 一文带你由浅入深精通Flink方方面面（三）SQL篇（四）

七、函数在SQL中，我们可以把一些数据的转换操作包装起来，嵌入到SQL查询中统一调用，这就是“函数”（functions）。Flink的Table API和SQL同样提供了函数的功能。两者在调用时略有不同：Table API中的函数是通过数据对象的方法调用来实现的；而SQL则是直接引用函数名称&am...

Flink1.13架构全集| 一文带你由浅入深精通Flink方方面面（三）SQL篇（三）

（2）滑动窗口（HOP）滑动窗口的使用与滚动窗口类似，可以通过设置滑动步长来控制统计输出的频率。在SQL中通过调用HOP()来声明滑动窗口；除了也要传入表名、时间属性外，还需要传入窗口大小（size）和滑动步长（slide）两个参数。HOP(T...

实时数据分析：使用Flink实时发现最热Github项目

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实时数据接入：5分钟上手 Flink MySQL 连接器

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大数据知识图谱系列—基于ELK+Flink日志全观测最佳实践

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Flink1.13架构全集| 一文带你由浅入深精通Flink方方面面（三）SQL篇（二）

3. 支持的数据类型整体来看，DataStream中支持的数据类型，Table中也是都支持的，只不过在进行转换时需要注意一些细节。（1）原子类型在Flink中，基础数据类型（Integer、Double、String）和通用数据类型（也就是不可再拆分的数据类型ÿ...

Flink1.13架构全集| 一文带你由浅入深精通Flink方方面面（三）SQL篇（一）

哈喽各位，本章主要写的是FlinkSQL也是Flink章节的倒数第二篇了，最后还有一篇FlinkCEP，稍后会出，耐心关注哦！好了，进入正题！！！！Table API和SQL是最上层的API，在Flink中这两种API被集成在一起，...

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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

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功能对比

开源Flink对比

成本优化

作业自动调优