Hive窗口函数应用的相关内容

hive窗口函数应用实例

案例1：连续登陆用户当前有一份用户登录数据如下图所示，数据中有两个字段，分别是userId和loginTime userId表示唯一的用户ID，唯一标识一个用户 loginTime表示用户的登录日期，例如第一条数据就表示A在2021年3月22日登录了数据准备 log.txtA 2021-03-22 ...

大数据Hive窗口函数应用实例 2

2.2 分析如果要实现以上需求，首先要统计出每个用户每个月的消费总金额，分组实现集合，但是需要按照用户ID，将该用户这个月之前的所有月份的消费总金额进行累加实现。该需求可以通过两种方案来实现：方案一：分组统计每个用户每个月的消费金额，然后构建自连接，根据条件分组聚合方案二：...

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大数据Hive窗口函数应用实例 1

1 连续登陆用户1.1 需求当前有一份用户登录数据如下图所示，数据中有两个字段，分别是userId和loginTime。userId表示唯一的用户ID，唯一标识一个用户，loginTime表示用户的登录日期，例如第一条数据就表示A在2021年3月22日登录了。现在需要对用户的登录次数进行统计，得到连...

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开源大数据平台 E-MapReduce

开源大数据平台 E-MapReduce（简称“EMR”）是云原生开源大数据平台，向客户提供简单易集成的Hadoop、Hive、Spark、Flink、Presto、ClickHouse、StarRocks、Delta、Hudi等开源大数据计算和存储引擎服务。

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EMR实时计算实践