[Haskell-beginners] Pattern Matching & Binding

[Ari King]

Hi,

I've posted (on http://pastebin.com/R5MPNaHs) code I'm working on to
practice reading/writing CSV and interacting with DBs. I'd appreciate help
in better understanding how to destructure (pattern match) lists/vectors
(see line 28 in post) and the difference in "binding" via let/where and <-.
I'd also appreciate suggestions on how to improve the code put together
thus far to make it more idiomatic. Thanks.

Best,
Ari
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