Data Dictionary
Q.1: What is Data Dictionary in DBMS?
Answer:
Data Dictionary is simply a collection of definitions, data elements, or database contents like data types, attributes, etc.
Q.2: What is Data Dictionary also called in DBMS?
Answer:
Data Dictionary is also called a Metadata Repository in DBMS.
Q.3: What is an advantage of a Data Dictionary?
Answer:
The main advantage of a Data Dictionary is that it helps faster/easier detection of data anomalies. It also provides transparency in the data.
Short Note on Data Dictionary
A Data Dictionary comprises two words i.e. Data which simply means information being collected through some sources and Dictionary means where this information is available.
A Data Dictionary can be defined as a collection of information on all data elements or contents of databases such as data types, and text descriptions of the system. It makes it easier for users and analysts to use data as well as understand and have common knowledge about inputs, outputs, components of a database, and intermediate calculations.