A series of tutorials examining the persistent database package in detail, concentrating on practical applications.
Persistent in Detail
As of March 2020, School of Haskell has been switched to read-only mode.
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Time values in persistent 3 Feb 2014School of Haskell
A look at the types used to manipulate time values via the persistent db interface -
Querying an existing database 29 Nov 2014School of Haskell
A tutorial on how to define persistent entities for use with a pre-existing database. Bonus feature of streaming results out to handle arbitrary-sized tables.