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所在平台: Udemy |
课程主页: https://www.udemy.com/course/advanced-excel-power-query-patterns-tips-tricks/
课程评论:没有评论
本 Coursera 课程“Excel Power Query 进阶– M 语言,故障排除,模式”将深入探讨 Power Query 的高级功能。课程涵盖四个主要领域: 1. **Power Query 错误故障排除与限制规避**:解决 Power Query 使用中常见的错误和局限性,包括列标题操作、 null 值处理、错误行识别、JOIN 查询的多重效应、筛选问题及高级筛选技巧。 2. **高级案例研究**:提供超越基础知识的真实世界案例研究,例如处理日期字段的本地设置转换、拆分包含多个信息的单元格(Leave dataset)、处理不规则数据的逆向堆叠以及将多行数据合并回单个单元格。课程将根据新的有趣数据集不断更新。 3. **高级 M 语言概念**:深入讲解 M 语言,包括高级编辑器中的语法使用、参数的创建与应用、通过 Power Query 界面或高级编辑器创建自定义 M 函数,以及对自定义函数的故障排除。还将介绍如何组织多个查询到不同的组,并利用查询依赖视图可视化查询之间的关系和数据流。 4. **现成的 Power Query 模式**:提供可直接复制粘贴使用的、无需重新创建的 Power Query 代码模式,以节省用户大量复杂操作的时间。 **先修要求**: * 安装最新版本的 Power Query(Excel 2010/2013 用户需安装最新插件,Excel 2016 及以上版本需更新)。 * 具备使用 Power Query 的基础知识。
Hello and welcome to Excel Power Query Advanced course.At the outset I thank you for showing interest in this course. In this video I will provide overview of all the contents of this course and what are basic requirements before you enroll into this course. So let's get started. There are four major areas I will be covering as part of this course. The first one is for troubleshooting the Power Query errors and workaround for limitation of Power Query. In real any software is not foolproof and has its own limitation. Also, if you don't use the software as programmed you may encounter errors. And I hope you would agree that error codes or description in most of the software are not that user friendly or they do not provide appropriate solution to resolve the error. Hence in this first section I will show some of the common areas where you face Power Query limitation and erros. Some of them are as follows: Error encountered with adding / rename / deleting a particular column headings. Handling null values during arithmetic calculation. Identify error rows encountered while creating or on refresh of query. Multiplying effect when you JOIN queries Issues with filters and how to use advanced filters. Then the next area is for advanced case studies. Similar to my starter course of Excel Power Query where I have shown you more than 20+ real life case studies of applying power query, here also I have taken some real life case studies which require some more in depth knowledge of Power Query and workaround. This section will be updated new case studies as and when I see some interesting datasets. The current video are related to Applying local setting when converting the dates fields Leave dataset which needed leave details to be broken into separate rows from a single cell. Unstack the dataset which has uneven details Combine multiple rows data back to single cell. Then next section is for advanced M concepts. Here I will give you more information related to M Language in Power Query. What syntax is to be used under advanced editor. How to create parameters and use it inside your power query. How to create new custom M function using PQ interface or through advanced editor. I will also show how you can troubleshoot the custom M function you have created using advanced editor. Then I will show you how you can organize your multiple queries in separate groups. Further I will also show how to use Query Dependency view which will give you visual presentation of all the queries inside your excel file. This will help you understand the flow of all the data from source till the final output, where it is loaded or which queries are referenced to each other. All precedents and dependents to your queries can be easily identified. And now finally in last section I will be providing some readymade patterns for power query. I will provide all the power query code which you can copy paste into your file and start using it. You will not need to create any new query for these patterns. Since creating these patterns using power query requires lot of efforts and also very complex I am providing you these as ready to use. So now before you enroll I would like to tell you that there are few requirements. First one is that you should have latest version of Power Query installed if you are using Excel 2010 / 2013 or if you are using Excel 2016 then it should be updated. Second and most important is that you should have prior knowledge of using Power Query. So that is it. There are no further requirements other than these two. So what are you waiting for, enroll now into the course.