Learn About Deadlocks in DBMS - Its Problem, Conditions, Ignorance and Prevention
"A deadlock is a condition where two or more transactions are waiting indefinitely for one another to give up locks. Deadlock is said to be one of the most feared complications in DBMS as no task ever gets finished and is in waiting state forever. In a database, when a transaction waits indefinitely to obtain a lock, then the DBMS should detect whether the transaction is involved in a deadlock or not. The lock manager maintains a Wait for the graph to detect the deadlock cycle in the database.
Deadlock prevention method is suitable for a large database. If the resources are allocated in such a way that deadlock never occurs, then the deadlock can be prevented. The DBMS analyzes the operations whether they can create deadlock situation or not, If they do, that transaction is never allowed to be executed."
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