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. It is an architecture product that documents the database's content and data quality.
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. It is an architecture product that documents the database's content and data quality.
Source: Wikipedia "Database catalog" · CC BY-SA 4.0
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