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Power BI 报表优化指南 原理 Power Query Data Modeling 课程简介: 基础知识 01 Power BI 报表优化指南概述 02 星型模型介绍 03 范式化与反范式化 04 在Power BI中建立星型模型 05 Vertipaq 引擎-列存储计算介绍 06 Storage Engine and Formula Engine 07 Performance Analyzer介绍 08 DAX Studio介绍 Power Query...
Once a connection is made, an XMLA-compliant tool can operate on the data model in two ways:Write data and metadata: Read/write use of the XMLA endpoint allows for: Data modeling capabilities that aren't supported by Power BI Desktop, like object-level security (OLS), calcu...
Transform, shape, and model data in Power BI Overview Query Editor overview Tutorials Create your own measures Create calculated columns Create calculation groups Concepts Edit data models in the Power BI service (preview) Using calculations options in Power BI Desktop Work with Modeling view Work wi...
Introduction to Data Modeling for Power BI is an introductory video course about data modeling, which is a required skill to get the best out of Power BI, Power Pivot for Excel, and Analysis Services. The training is aimed at users that do not have a background knowledge in data modeling...
Power BI Semantic model 15 October, 2024byRui Romano You can use Power BI Desktop to live edit Direct Lake semantic models, improving your data modeling experience and allowing export to Power BI Project (PBIP) for professional development workflows. ...
This course has transformed the way I think about data modeling. I highly recommend it to anyone who works with Power BI or similar tools. Whether you're a beginner or an experienced professional, you'll find immense value here. Thank you, SQLBI, for this exceptional training experience! ...
Proper data modeling is the foundation of data analysis and creating reports in Power BI. This course lets you explore a toolbox of data cleaning, shaping, and loading techniques, which you can apply to your data. Diving into Power Query ...
您可以通过组合现有数据的两个或多个元素在 Power BI 中创建计算列。您还可以对现有列应用计算以定义新指标或组合两列以创建一个新列。 您甚至可以创建一个计算列来建立表之间的关系,也可以用来建立两个表之间的关系。 要创建新的计算列,请导航到屏幕左侧的数据视图选项卡,然后单击建模。
开始使用 Power BI 数据模型的第一步是导入模式。 导入模式提供最多的选择、设计灵活性和快速性能。 如果你的数据源存储大量数据和/或报表需要提供准实时数据,请使用DirectQuery。 最后,在需要执行以下操作时使用复合模型: 提升DirectQuery 模型的查询性能。