lockingtransactions
Locking transactions are a fundamental mechanism used in database management systems to ensure data consistency and integrity when multiple users or processes attempt to access and modify the same data concurrently. The primary goal of locking is to prevent race conditions and lost updates, which can occur if operations are interleaved in an undesirable way.
When a transaction needs to access a piece of data, it can request a lock on that
When a transaction acquires an exclusive lock, no other transaction can acquire any type of lock on
The process of acquiring and releasing locks is managed by the database's concurrency control mechanism. Locks