What Does Data Dictionary Mean?
A data dictionary is a file or a set of files that contains a database’s metadata. The data dictionary contains records about other objects in the database, such as data ownership, data relationships to other objects, and other data.The data dictionary is a crucial component of any relational database. It provides additional information about relationships between different database tables, helps to organize data in a neat and easily searchable way, and prevents data redundancy issues.
Techopedia Explains Data Dictionary
A Data Dictionary contains information about attributes or fields of a certain data set. In a relational database, the metadata in the data dictionary includes the following:
