October 2021
Beginner to intermediate
256 pages
4h 38m
English
Content preview from The Informed Company
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Chapter SeventeenData Mart Maintenance
Now that the data marts are set up, they will need ongoing maintenance to get the most out of your data. The first step is to establish a mart lead per mart who will be responsible for carrying out the maintenance tasks for each mart:
- Educate team.
- Identify issues.
- Identify new needs.
Mart leads are ideally part of the business unit that needs the mart. They know the context for the data; if Facebook ads spike in their conversion rate, they should be the ones who'd know “that's because we just cut our spend in half and removed the nonperforming ads.” They can communicate with the warehouse lead about their teams’ data needs and then communicate and educate the team about using their mart.
They are responsible for identifying issues in the data that exist in their mart. They also should be the ones creating requests to get more data sources or tables added to their mart. They also should be part of the workflow/ticket system and be able to teach others and maybe even respond themselves to tickets/data requests.
Educate Team
Different teams have different needs, but some common threads include teaching SQL skills or how to use your BI tool. We wrote a book on how to teach SQL to help with explaining how JOINs, aggregations, and subqueries work. These concepts are not intuitive to most business users; however, they can be taught in a relatively short time frame.
Mart leads should document and share data quirks that show up in common queries. ...
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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.Julian F.
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.Addison B.
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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.