18. Summarizing Values

This advanced SQL exercise is part of the book: Advanced SQL – Practical Techniques and Use-Cases, which includes 100 day-to-day SQL challenges (and solutions), need-to-know advanced features, and key concepts.

An interesting SQL exercise.
Given a table with different numeric values:

(num1 INT  
,num2 INT  
,num3 INT  
,num4 INT  
,num5 INT)  

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