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1,561 PointsSQL
Having a hard time wrapping my brain around this.
Suppose I have a table like this
1 Answer
Steven Parker
231,184 PointsThe result set will have a separate row for each unique combination of items being grouped by. So don't include the date in the grouping:
SELECT name, date, MAX(amount)
FROM sample
GROUP BY name
snailort
1,561 Pointssnailort
1,561 PointsThanks Steven! The issue with that is when I try and run this, I receive the following error:
ERROR: column "sample.date" must appear in the GROUP BY clause or be used in an aggregate function
I'm assuming that is where a subquery comes in, but that is where I'm having a hard time seeing how that would work.
Steven Parker
231,184 PointsSteven Parker
231,184 PointsIf you are using a database engine that does not allow you to select a column that isn't being grouped or aggregated (not an issue with SQLite), you could use your subquery idea:
snailort
1,561 Pointssnailort
1,561 PointsSweet, that second one did it! Thanks so much, going to sit with this one for a bit :)