AzureDataFactoryHOL:Azure数据工厂动手实验-逐步-全面的Azure数据工厂和映射数据流分步教程

上传者: 42118011 | 上传时间: 2025-06-29 11:23:20 | 文件大小: 466.39MB | 文件类型: ZIP
在本动手实验中,我们将深入探索Azure Data Factory(ADF),这是一个云原生的数据集成服务,用于创建、调度和管理ETL(提取、转换、加载)和ELT(提取、加载、转换)工作流。ADF提供了丰富的功能,如数据复制、数据转换、数据触发以及与其他Azure服务的深度集成,是构建现代化数据仓库和数据湖解决方案的关键组件。 **Azure Data Factory基础知识** Azure Data Factory 是微软云中的一个完全托管的服务,允许用户通过图形化界面或JSON脚本来创建数据集成工作流。它支持多种数据源,包括Azure内的存储服务(如Blob Storage、ADLS Gen2)以及SQL Server、Oracle、SAP等外部数据源。 **ADF管道与活动** 在ADF中,数据集成逻辑被组织成"管道",每个管道可以包含一个或多个"活动"。活动是执行特定任务的单元,如数据复制、数据转换或控制流操作。例如,"Filter Activity"根据指定条件筛选数据,"Lookup Activity"用于从另一个数据源查询数据,"ForEach Activity"则用于对集合执行迭代操作,而"Metadata Activity"用于获取数据集的元数据。 **映射数据流** ADF的一项强大特性是"Mapping Data Flows",它提供了一种可视化方式来设计和执行数据转换。数据流允许非编码人员也能进行复杂的数据转换,如选择、重命名、过滤、聚合、合并和JOIN等操作。此外,它还支持Spark引擎进行大规模并行处理,提高了处理大量数据的效率。 **Azure Key Vault集成** 在安全性和合规性方面,ADF能够与Azure Key Vault集成,用于管理连接字符串、凭据和其他敏感信息。这样可以确保数据访问的安全,并符合企业安全标准。 **ETL/ELT流程** ADF支持两种主要的数据集成模式:ETL(提取、转换、加载)和ELT(提取、加载、转换)。ETL模式在云中完成数据转换,而ELT模式则将数据加载到云存储后,再在计算层如Azure Databricks或HDInsight上执行转换。 **Web Activity** Web Activity允许在ADF管道中执行HTTP请求,这可以用于调用REST API、触发Web服务或者获取外部系统的状态信息。这对于集成各种云服务和实现自动化工作流程非常有用。 **Azure Modern Data Warehouse** ADF在构建现代化数据仓库中扮演着重要角色,它可以轻松地将数据从多个来源整合到Azure SQL Data Warehouse、Synapse Analytics或大数据平台(如ADLS Gen2、HDInsight)。 **动手实验室** "AzureDataFactoryHOL-master"压缩包可能包含了完成本实验所需的所有资源和步骤,包括教程文档、示例数据、ADF配置文件等。通过这个动手实验,参与者将学习如何创建和部署ADF管道,配置各种活动,以及如何使用映射数据流进行数据转换。 总结起来,这个动手实验将涵盖Azure Data Factory的核心概念、关键功能和最佳实践,帮助你掌握如何利用ADF构建高效、安全和可扩展的数据集成解决方案。通过实际操作,你将加深对云数据工厂的理解,并提升你的数据工程技能。

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