Locking may cause which of the following problems?

Deadlock

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Versioning

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Versioning & deadlock

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Erroneous updates

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Erroneous updates and deadlock

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Solution

The correct option is A Deadlock
Locking is a process used to 'lock' some data in a database to prevent concurrent access to update the data. Locking may lead to deadlock. The deadlock means users are waiting for other users to free the resource.

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