March 2023
Intermediate to advanced
270 pages
5h 51m
English
book
SQL Query Design Patterns and Best Practices
by Steven Hughes, Dennis Neer, Ram Babu Singh, Shabbir Mala, Leslie Andrews, Chi Zhang
Content preview from SQL Query Design Patterns and Best Practices
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1
Reducing Rows and Columns in Your Result Sets
Today the sources of data that a data analyst has access to have grown to the point that the amount of data that is available to you is unlimited. The challenge that a data analyst faces today is to determine how to generate a result set that is manageable and has the information that ensures that it will meet the needs of the analyst for their reports and analysis. If there is too much data, the result set will become unmanageable and unusable due to information overload; too little data and the data will have gaps, and the end user will lose trust in the data.
In this chapter, we will review how you determine how much data and what data you should keep in your result set and how to filter that ...
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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.
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.Amir M.
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.