khibino/haskell-relational-record
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Kei Hibino 2021-07-16 20:42:21 +09:00
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@ -5,7 +5,7 @@ title: Project site
### <a name="what-is-hrr"></a> What is HRR?
Haskell Relational Record (HRR) is a query generator based on typed relational algebra and correspondence between SQL value lists and Haskell record types, which provide programming interfaces to Relational DataBase Managemsnt Systems (RDBMS).
Haskell Relational Record (HRR) is a query generator based on typed relational algebra and correspondence between SQL value lists and Haskell record types, which provide programming interfaces to Relational DataBase Management Systems (RDBMS).
- Abstracted - relations are expressed as high level expressions and they are translated into SQL statements. Drivers are provided for DB2, PostgreSQL, SQLite, MySQL, Microsoft SQL Server and OracleSQL.
- Type safe - SQL statements produced by HRR are guaranteed to be valid if the Haskell code compiles. Even the types of placeholders are propagated.