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Applications and libraries/Database interfaces/HaskellDB

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[[Category:Applications]]
== Introduction ==
== Introduction ==
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A combinator library for declarative, type safe database management. A domain specific embedded language, containing the concept of [[extensible record]] and a special Query [[monad]] (among other powerful ideas, see [[#Appendix]]).
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A [[combinator]] library for declarative, type safe database management. All queries and operations can be expressed in Haskell. No SQL need be written!
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== Homes ==
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While [https://github.com/m4dc4p/haskelldb HaskellDB is on GitHub], [http://hackage.haskell.org/package/haskelldb Hackage] hosts the [http://hackage.haskell.org/package/haskelldb latest release of HaskellDB].
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=== [http://www.haskell.org/haskellDB/index.html Daan Leijen's original version] ===
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==== Archived Information ====
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It makes possible to use Haskell's typecheck system for a type-safe, declarative database management -- a combinator library. It can prevent the user even from using multiple labels in the same record, but the price for this: it needs a special extension of Haskell called Trex (providing [[extensible record]]s).
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=== [http://haskelldb.sourceforge.net/index.html Chalmers version] ===
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Archive information from this page can be found on [[Applications and libraries/Database interfaces/HaskellDB/Archive]].
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A student project by Björn Bringert, Anders Höckersten, Conny Andersson, Martin Andersson, Mary Bergman, Victor Blomqvist, Torbjörn Martin.
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It works well with the most common Haskell implementations, because [[extensible record]]s (without check for multiple labels) are implemented in a way which does not need the Trex extension of Haskell.
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See also Björn Bringert's slides [http://www.cs.chalmers.se/~bringert/publ/haskelldb/haskelldb-db-2005.pdf HaskellDB -- Type safe declarative database combinators].
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== Other materials ==
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=== ICS Wiki ===
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[http://abaris.zoo.cs.uu.nl:8080/wiki/ ICS Wiki] is a huge resource of Haskell materials (among others).
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* [http://abaris.zoo.cs.uu.nl:8080/wiki/pub/Afp/DomainSpecificLanguages/haskelldb.pdf Database programming with HaskellDB] -- a PDF file (slides). A webpage containing a link to it (among others): the bottom (attachment part) of [http://abaris.zoo.cs.uu.nl:8080/wiki/Afp/DomainSpecificLanguages the ''Domain Specific Languages'' page of ICS Wiki].
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* There are other links to HaskellDB materials in the [http://abaris.zoo.cs.uu.nl:8080/wiki/Afp/DomainSpecificLanguages#4_Haskell_DB HaskellDB section of the same page].
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== Appendix ==
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Concepts which are concerned by the papers of the two official HaskellDB homes
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* [[Extensible record]]
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* [[Phantom type]]
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* [[Generalised algebraic datatype]]
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Current revision

1 Introduction

A combinator library for declarative, type safe database management. All queries and operations can be expressed in Haskell. No SQL need be written!

While HaskellDB is on GitHub, Hackage hosts the latest release of HaskellDB.

1.1 Archived Information

Archive information from this page can be found on Applications and libraries/Database interfaces/HaskellDB/Archive.

Retrieved from "http://www.haskell.org/haskellwiki/Applications_and_libraries/Database_interfaces/HaskellDB"

Category: Applications