In A Previous Installment… our heroine (that’s me) rediscovered CTEs, specifically in the recursive style. That was in my post “Filling in Data Potholes with Recursive CTEs.”
Imagine that you are writing a script that looks at data grouped by the minute. You notice that there are no rows for some minutes, and you’d like to display a value when that is the case, probably showing a count of zero.
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