Calculating Delta Values in SQL | The Difference Between Two Rows | Essential Skills

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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[@AliMalik-yt5ex]

Hey, really good stuff. I found the music to be somewhat distracting. I think the video would do fine just without it, just a suggestion.

[@MatadorSoftware]

Thanks for the comment Ali, I appreciate it and will certainly take the feedback on board!