👉 Learn how to evaluate a piecewise function. A piecewise function is a function which uses different rules for different intervals. When evaluating a piecewise function, pay attention to the ...
sum(case when customer_feedback = 'Very Good' then 1 else 0 end) as very_good, sum(case when customer_feedback = 'Good' then 1 else 0 end) as good, sum(case when ...
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