Differentiation between metadata and data dictionary

Question

Give a brief differentiation between metadata and data dictionary?

Answer 1

Metadata depicts about data. It is ‘‘data about data’’. It has information concerning how and when, through whom a certain data was gathered and the data format. It is vital to understand information that is stored in xml-based and web data warehouses applications.

Data dictionary is a file which comprises of the essential definitions of a database. It holds the list of files that are accessible in the database, figure of records in each and every file, and the information about the fields.