Database catalog

The database catalog of a database instance consists of metadata in which definitions of database objects such as base tables, views (virtual tables), synonyms, value ranges, indexes, users, and user groups are stored.[1][2]

The SQL standard specifies a uniform means to access the catalog, called the INFORMATION_SCHEMA, but not all databases follow this, even if they implement other aspects of the SQL standard. For an example of database-specific metadata access methods, see Oracle metadata.

References

  1. ↑ Paul C. Tinnirello (1999). Systems Development Handbook. CRC Press. ISBN 0-8493-9822-3.
  2. ↑ CREATE VIEW (Transact-SQL) in SQL Server 2008 Books Online, Microsoft Corporation


This article is issued from Wikipedia - version of the 7/1/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.