Question: explain the following 1. Evolution of relational databases as a tool for information management 2. What is concurrency control and why does a DBMS need

explain the following

1. Evolution of relational databases as a tool for information management

2.What is concurrency control and why does a DBMS need a concurrency control facility.

3.Why is learning about database and its use important to you? Which database is your information stored in (list at least two)? Are they concurrency control databases?

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What is concurrency control and why does a Database Management Systems need a concurrency control facility?

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