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What's your favorite construct in SQL? (beehaw.org)

submitted 1 year ago by [email protected] to c/[email protected]

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For me, it's CTE's. I find it amazing to complete a calculation with clear intermediate steps, and goes a long way towards convincing people to use SQL rather than Excel to perform calculations on large tables of data.

What construct do you like using on a daily basis?

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[–] [email protected] 1 points 1 year ago (1 children)

CTEs can be useful, particularly in PostgreSQL, where there are writable CTEs, but a lot of the time, I prefer using temp tables over CTEs, as they often perform better for larger datasets. I think one of my favorite constructs is window functions. I've found many uses for them, over the years.

[–] [email protected] 1 points 1 year ago

There was one time a good while back where I used window functions to perform edge detection in a dataset. I'll see if I can dig up that query later.