Applications and libraries/Database interfaces: Difference between revisions
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;[https://github.com/hdbc/hdbc HDBC] | ;[https://github.com/hdbc/hdbc HDBC] | ||
: HDBC is modeled loosely on Perl's DBI interface, though it has also been influenced by Python's DB-API v2, JDBC in Java, and HSQL in Haskell. Supports SQLite3, PostgreSQL, ODBC (including MySQL). ([http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HDBC HDBC in Hackage]) | : HDBC is modeled loosely on Perl's DBI interface, though it has also been influenced by Python's DB-API v2, JDBC in Java, and HSQL in Haskell. Supports SQLite3, PostgreSQL, ODBC (including MySQL). ([http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HDBC HDBC in Hackage]; [[HDBC-Example|an example of its use]].) | ||
;[ | ;[https://github.com/m4dc4p/haskelldb HaskellDB] | ||
: HaskellDB is a combinator library for expressing queries and other operations on relational databases in a type safe and declarative way. All the queries and operations are completely expressed within Haskell, no embedded (SQL) commands are needed. | |||
: Both the [http://www.haskell.org/haskellDB original version from Daan Leijen's] HaskellDB and the [https://github.com/m4dc4p/haskelldb HaskellDB more up-to-date GitHub version] (works with latest GHC versions) are relatively platform-independent. | |||
: This close integration makes it possible to do arbitrary computations on the database (like computing the transitive closure). ([http://hackage.haskell.org/cgi-bin/hackage-scripts/package/haskelldb HaskellDB in Hackage]) | |||
;[http://hackage.haskell.org/cgi-bin/hackage-scripts/package/BerkeleyDBXML-0.1 Berkeley DB/DB XML binding] | |||
:See [http://hackage.haskell.org/cgi-bin/hackage-scripts/package/BerkeleyDBXML-0.1 BerkeleyDBXML in Hackage] | :See [http://hackage.haskell.org/cgi-bin/hackage-scripts/package/BerkeleyDBXML-0.1 BerkeleyDBXML in Hackage] | ||
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;[http://hackage.haskell.org/package/mysql-simple mysql-simple], [http://hackage.haskell.org/package/postgresql-simple postgresql-simple], [http://hackage.haskell.org/package/sqlite-simple sqlite-simple] | ;[http://hackage.haskell.org/package/mysql-simple mysql-simple], [http://hackage.haskell.org/package/postgresql-simple postgresql-simple], [http://hackage.haskell.org/package/sqlite-simple sqlite-simple] | ||
The *-simple packages provide a mid-level database interface to MySQL, PostgreSQL and SQLite. They each have a similar API but do not attempt to generalize to cover multiple database implementations under a single library. This enables each library to expose database-specific features. These libraries rely on SQL queries embedded as strings but do support converting | :The *-simple packages provide a mid-level database interface to MySQL, PostgreSQL and SQLite. They each have a similar API but do not attempt to generalize to cover multiple database implementations under a single library. This enables each library to expose database-specific features. These libraries rely on SQL queries embedded as strings but do support automatically converting fields to/from the database to Haskell types. | ||
;[https://github.com/nikita-volkov/hasql Hasql] | |||
:PostgreSQL driver with focus on performance, simplicity and type-safety. The fastest driver around according to [https://nikita-volkov.github.io//hasql-benchmarks/ the benchmarks]. Powers [https://github.com/PostgREST/postgrest PostgREST] a very popular production-grade REST API for PostgreSQL. Comes with a rich [https://github.com/nikita-volkov/hasql#ecosystem ecosystem of libraries]. | |||
=== Non-current === | === Non-current === | ||
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;[http://wiki.di.uminho.pt/twiki/bin/view/Research/PURe/VooDooM VooDooM] | ;[http://wiki.di.uminho.pt/twiki/bin/view/Research/PURe/VooDooM VooDooM] | ||
:PURe VooDooM reads VDM-SL specifications and applies transformation rules to the datatypes that are defined in them to obtain a relational representation for these datatypes. The relational representation can be exported as VDM-SL datatypes (inserted back into the original specification) or SQL table definitions (which can be fed to a relational DBMS). (''Development discontinued in 2006'') | :PURe VooDooM reads VDM-SL specifications and applies transformation rules to the datatypes that are defined in them to obtain a relational representation for these datatypes. The relational representation can be exported as VDM-SL datatypes (inserted back into the original specification) or SQL table definitions (which can be fed to a relational DBMS). (''Development discontinued in 2006'') | ||
;[http://www.volker-wysk.de/mysql-hs/ MySQL-HS] | ;[http://www.volker-wysk.de/mysql-hs/ MySQL-HS] |
Latest revision as of 11:56, 17 July 2021
Libraries
Current
- Takusen
- A library to interface to Oracle, Sqlite, and Postgres, with an API based on a left-fold enumerator. Now hosted at code.haskell.org. (Takusen in Hackage)
- Database Supported Haskell
- DSH is a Haskell library for database-supported program execution. Using this library a relational database management system (RDBMS) can be used as a coprocessor for the Haskell programming language, especially for those program fragments that carry out data-intensive and data-parallel computation.
- HDBC
- HDBC is modeled loosely on Perl's DBI interface, though it has also been influenced by Python's DB-API v2, JDBC in Java, and HSQL in Haskell. Supports SQLite3, PostgreSQL, ODBC (including MySQL). (HDBC in Hackage; an example of its use.)
- HaskellDB is a combinator library for expressing queries and other operations on relational databases in a type safe and declarative way. All the queries and operations are completely expressed within Haskell, no embedded (SQL) commands are needed.
- Both the original version from Daan Leijen's HaskellDB and the HaskellDB more up-to-date GitHub version (works with latest GHC versions) are relatively platform-independent.
- This close integration makes it possible to do arbitrary computations on the database (like computing the transitive closure). (HaskellDB in Hackage)
- HSQL
- HSQL is a simple library which provides an interface to multiple databases. MySQL, PostgreSQL, ODBC, SQLite and Oracle are currently supported. It is part of HToolkit. (HSQL in Hackage)
- mysql-simple, postgresql-simple, sqlite-simple
- The *-simple packages provide a mid-level database interface to MySQL, PostgreSQL and SQLite. They each have a similar API but do not attempt to generalize to cover multiple database implementations under a single library. This enables each library to expose database-specific features. These libraries rely on SQL queries embedded as strings but do support automatically converting fields to/from the database to Haskell types.
- Hasql
- PostgreSQL driver with focus on performance, simplicity and type-safety. The fastest driver around according to the benchmarks. Powers PostgREST a very popular production-grade REST API for PostgreSQL. Comes with a rich ecosystem of libraries.
Non-current
Move these to [#Current] if they are updated.
Discontinued
- CoddFish
- PURe See a separate Haskell Wiki page on it. It is another type safe and declarative approach to database managament in Haskell. (Development discontinued in 2006)
- VooDooM
- PURe VooDooM reads VDM-SL specifications and applies transformation rules to the datatypes that are defined in them to obtain a relational representation for these datatypes. The relational representation can be exported as VDM-SL datatypes (inserted back into the original specification) or SQL table definitions (which can be fed to a relational DBMS). (Development discontinued in 2006)
- MySQL-HS
- MySQL-HS is an interface to the MySQL database.
- Note: Development was discontinued on 2004-09-21.
Hackage
Related concepts
This page contains a list of libraries and tools in a certain category. For a comprehensive list of such pages, see Applications and libraries.