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I want to calculate the upper and the lower quartile of the value what I call "diffs" in these fiddle with my DB and the query

How can I do this with SQLite?

There's an extension on the, extension-functions.c, which has these commands.

How can I integrate such a query in my Windows-XAMPP Environment?

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closed as unclear what you're asking by Max Vernon, RolandoMySQLDBA, dezso, Colin 't Hart, RLF Jun 3 '15 at 12:54

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question.If this question can be reworded to fit the rules in the help center, please edit the question.

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