SQL/MED

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

The SQL/MED ("Management of External Data") extension to the SQL standard is defined by ISO/IEC 9075-9:2008 (originally defined for SQL:2003). SQL/MED provides extensions to SQL that define foreign-data wrappers and datalink types to allow SQL to manage external data. External data is data that is accessible to, but not managed by, an SQL-based DBMS. This standard can be used in the development of federated database systems.

Implementations[edit]

  • PostgreSQL has support for some SQL/MED since version 9.1. 9.2 supports more.[1]
  • LucidDB has support for SQL/MED.[2]
  • MariaDB has support for SQL/MED with the CONNECT storage engine.[3] The implementation uses different syntax than the official standard.
  • Farrago has support for SQL/MED.[4]
  • IBM DB2 has support for SQL/MED.[5]
  • Teiid has support for SQL/MED. [6]

See also[edit]

References[edit]

External links[edit]