|7 days ago||about 6 years ago|
|MIT License||BSD 3-clause "New" or "Revised" License|
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[ANN] hasql-listen-notify: LISTEN/NOTIFY support for hasql
2 projects | reddit.com/r/haskell | 30 Jan 2023
The API comes free from all kinds of exceptions. All error-reporting is explicit and is presented using the Either type.
What databases do you find the most productive to connect to Haskell?
3 projects | reddit.com/r/haskell | 29 Dec 2022
Postgresql-simple is a great library, it makes a nice use of overloaded strings to do the job. Some other nice libraries to keep an eye on are opaleye (postgres specific, which is equally nice but could be a bit difficult to get why the types are so big) and a combination of persistent (not DB specific! can work on postgres, sqlite, but also noSQL DBs like mongo, it's still easy to learn but you lose some things, such as joins due to the power of being agnostic) + esqueleto for type safe joins (be sure to look up the experimental package, it's a more comfortable syntax that will soon become the default one).
Go performance from version 1.2 to 1.18
14 projects | news.ycombinator.com | 3 Feb 2022
In Haskell: https://hackage.haskell.org/package/esqueleto
Either it analyzes the given SQL to determine the in/out types of each SQL query, or it calls the database describe feature at compile-time.
What are some alternatives?
yxdb-utils - Utilities for parsing Alteryx Database format
groundhog - This library maps datatypes to a relational model, in a way similar to what ORM libraries do in OOP. See the tutorial https://www.schoolofhaskell.com/user/lykahb/groundhog for introduction
hocilib - A lightweight Haskell binding to the OCILIB C API
hasql-th - Template Haskell utilities for Hasql
squeal-postgresql - Squeal, a deep embedding of SQL in Haskell
beam - A type-safe, non-TH Haskell SQL library and ORM
mysql-simple - A mid-level client library for the MySQL database, intended to be fast and easy to use.