SQL/MED

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The SQL/MED, or Management of External Data, extension to the SQL standard is defined by ISO/IEC 9075-9:2003. 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

  • PostgreSQL has support for some SQL/MED since version 9.1. 9.2 supports more.[1]
  • LucidDB has support for SQL/MED.[2]

See also

  • SQL
  • SQL:2003

References

  1. ↑ PostgreSQL Wiki: SQL/MED
  2. ↑ LucidDB Architecture

External links

SQL
Versions
  • SQL-86
  • SQL-89
  • SQL-92
  • SQL:1999
  • SQL:2003
  • SQL:2006
  • SQL:2008
  • SQL:2011
Keywords
  • As
  • Case
  • Create
  • Delete
  • From
  • Having
  • Insert
  • Join
  • Merge
  • Null
  • Order by
  • Prepare
  • Select
  • Truncate
  • Union
  • Update
  • Where
  • With
Related
  • Edgar Codd
  • Relational database
ISO/IEC SQL parts
  • Framework
  • Foundation
  • Call-Level Interface
  • Persistent Stored Modules
  • Management of External Data
  • Object Language Bindings
  • Information and Definition Schemas
  • SQL Routines and Types for the Java Programming Language
  • XML-Related Specifications


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