February 2024
Beginner to intermediate
340 pages
8h 19m
English
Content preview from Data Cleaning with Power BI
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Assessments
Chapter 1 – Introduction to Power BI Data Cleaning
- B – 50-80%
- D – Power Query, data modeling, DAX formulas
- C – Data transformation and preparation
- C – As a formula language for creating calculations and measures
- B – To bridge the gap between relational databases and spreadsheet tools
- D – It can be used for both calculations and querying within Power BI
- B – It enhances clarity and reduces ambiguity
Chapter 2 – Understanding Data Quality and Why Data Cleaning is Important
- A – The extent to which data represents true values and attributes
- D – Human errors during data entry
- B – Data completeness
- B – It helps maintain data integrity and accuracy
- B – A culture of data stewardship
- A – Proactively identifying and addressing data quality ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.