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Calculating Delta Values in SQL | The Difference Between Two Rows | Essential Skills
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In this SQL tutorial I cover a key SQL skill that will regularly crop up in challenges or interviews: calculating the delta or difference between values in previous rows.
I provide the script for creating our practice table and values, if you want to follow along. I'll then go through a solution using the LAG() window function, FORMAT() function and Temp Tables.
Enjoy!
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I provide the script for creating our practice table and values, if you want to follow along. I'll then go through a solution using the LAG() window function, FORMAT() function and Temp Tables.
Enjoy!
🤝 Connect with me on LinkedIn:
🤝 View my Website:
🖥📝 I also have a great value 2 hour data career consultation service to get you on the right track. Covering resumes, ATS, data technology, soft skills, roadmaps and a take home document pack at great value. Check out the Fiverr gig below:
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