New issues arise when more than one user wants to update a database simultaneously. Each user must have a consistent view of the DB, and it must be possible to lock a given file or record so that one user has exclusive access to it for updating.
Even more interesting issues arise if the DB is distributed across many machines
What algorithms lie under the surface of a DBMS?
Identify the five parts of a programming language in the domain of Database Management Systems.
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Last Updated 2002/04/16
© J.A.N. Lee, 2002.