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What is a real-time database?
A real-time database is a database system which uses real-time processing to handle workloads whose state is constantly changing.
How does a real-time database differ from traditional databases?
A real-time database is a database system which uses real-time processing to handle workloads whose state is constantly changing. This differs from traditional databases containing persistent data, mostly unaffected by time.
What are the advantages of real-time processing in real-time databases?
Ideal for processing large volumes of data/transaction for it increases efficiency rather than processing each individually.Can be done or processed independently during less-busy times or at a desired designated time.

Question: What are examples of important ones
Self-contained rewrite: What are examples of important real-time databases?