QuerydrillFirst and last order
An SQL exercise from Querydrill. Solve it with a SQL editor in your browser, checked on the rows it returns and again on changed data, and it is checked the moment you submit.
The task
Return the earliest and the latest order date, as two columns in one row.
What this exercise teaches
ISO dates (YYYY-MM-DD) sort correctly as text, so MIN and MAX just work.
A hint if you get stuck
MIN and MAX work on ISO dates stored as text.
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