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Extensible record

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== Papers and libraries ==
 
== Papers and libraries ==
* [http://homepages.cwi.nl/~ralf/HList/ HList --- a Haskell library for strongly typed heterogeneous collections] includes also extensible records. Its relatedness to database programming is described in the articles, se also its [http://hackage.haskell.org/trac/summer-of-code/ticket/33 possible] relatedness to [[Libraries and tools/Database interfaces/HaskellDB|HaskellDB]] project.
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* [http://homepages.cwi.nl/~ralf/HList/ HList --- a Haskell library for strongly typed heterogeneous collections] includes also extensible records. Its relatedness to database programming is described in the articles, see also its [http://hackage.haskell.org/trac/summer-of-code/ticket/33 possible] relatedness to [[Libraries and tools/Database interfaces/HaskellDB|HaskellDB]] project.
 
* Daan Leijen: [http://www.cs.uu.nl/~daan/pubs.html#fclabels First-class labels for extensible rows]. See also the description of the Haskell-like language [http://www.cs.uu.nl/~daan/morrow/ Morrow], it is based on the concepts of the article. And [http://www.cs.uu.nl/~daan/pubs.html#scopedlabels Extensible records with scoped labels]: "We describe a natural approach to typing polymorphic and extensible records that is simple, easy to use in practice, and straightforward to implement."
 
* Daan Leijen: [http://www.cs.uu.nl/~daan/pubs.html#fclabels First-class labels for extensible rows]. See also the description of the Haskell-like language [http://www.cs.uu.nl/~daan/morrow/ Morrow], it is based on the concepts of the article. And [http://www.cs.uu.nl/~daan/pubs.html#scopedlabels Extensible records with scoped labels]: "We describe a natural approach to typing polymorphic and extensible records that is simple, easy to use in practice, and straightforward to implement."
 
* Simon Peyton Jones and Greg Morrisett: [http://research.microsoft.com/~simonpj/Haskell/records.html A proposal for records in Haskell]
 
* Simon Peyton Jones and Greg Morrisett: [http://research.microsoft.com/~simonpj/Haskell/records.html A proposal for records in Haskell]
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=== Declarative database management ===
 
=== Declarative database management ===
   
Such systems can achive more type safety (compared to direct SQL handling).
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Such systems can achieve more type safety (compared to direct SQL handling).
   
 
==== HaskellDB ====
 
==== HaskellDB ====
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A problem where some concepts of extensible records could be useful is described in the [[Libraries and tools/Database interfaces/HaskellDB|HaskellDB]] project. More precisely, the problem is described in the paper downloadable from
 
A problem where some concepts of extensible records could be useful is described in the [[Libraries and tools/Database interfaces/HaskellDB|HaskellDB]] project. More precisely, the problem is described in the paper downloadable from
 
* [http://haskelldb.sourceforge.net/ Chalmers version of HaskellDB] (see ''Papers'' subsection on [http://haskelldb.sourceforge.net/#documentation Documentation])
 
* [http://haskelldb.sourceforge.net/ Chalmers version of HaskellDB] (see ''Papers'' subsection on [http://haskelldb.sourceforge.net/#documentation Documentation])
* which presupposes reading also paper on the [http://www.haskell.org/haskellDB/ Daam Leijen's original HaskellDB] page (see [http://www.haskell.org/haskellDB/doc.html Documentation subpage], PostScript version)
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* which presupposes reading also paper on the [http://www.haskell.org/haskellDB/ Daan Leijen's original HaskellDB] page (see [http://www.haskell.org/haskellDB/doc.html Documentation subpage], PostScript version)
   
[[Libraries and tools/Database interfaces/HaskellDB|HaskellDB]] uses its own extensible record sytem, but see also [[Libraries and tools/Database interfaces/HaskellDB#Future|HaskellDB#Future]].
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[[Libraries and tools/Database interfaces/HaskellDB|HaskellDB]] uses its own extensible record system, but see also [[Libraries and tools/Database interfaces/HaskellDB#Future|HaskellDB#Future]].
   
 
==== CoddFish ====
 
==== CoddFish ====

Revision as of 21:18, 16 June 2006

Contents


Proposals, implementations can be found on the FirstClassLabels page of Haskell' Wiki.

1 Papers and libraries

2 Applications

2.1 Declarative database management

Such systems can achieve more type safety (compared to direct SQL handling).

2.1.1 HaskellDB

A problem where some concepts of extensible records could be useful is described in the HaskellDB project. More precisely, the problem is described in the paper downloadable from

HaskellDB uses its own extensible record system, but see also HaskellDB#Future.

2.1.2 CoddFish

CoddFish is another declarative, type safe database system. As for extensible record system, it uses HList --- a Haskell library for strongly typed heterogeneous collections.