Computer Science for IGCSE & O level - Databases (Section 3 - No. 32)
What do we mean by 'data dictionary' in context of database?
A manual of how to use the database
A document that describes the database.
A collection of metadata about the database's structure.
A list of all the queries used in the database.
Giải thích
A data dictionary (or metadata repository) stores metadata about the database, which includes information about tables, columns, data types, constraints, and relationships.