Database catalog
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A 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] It is an architecture product that documents the database's content and data quality.[3]
Standards
[edit | edit source]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.
See also
[edit | edit source]- Data dictionary
- Data lineage
- Data Catalog Vocabulary, a W3C standard for metadata
- Metadata registry, central location where metadata definitions are stored and maintained
- Metadata repository, a database created to store metadata
References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
