What is lock granularity?
An example of an AI chatbot conversation about lock granularity in databases.
What is lock granularity?
Lock granularity refers to the size of the data item that a lock protects in a database. It can be at the level of a row, page, or table.
Why is lock granularity important?
It's important because it affects concurrency and performance. Finer granularity allows more transactions to occur simultaneously, while coarser granularity can lead to more contention.
Can you give an example of different lock granularities?
Sure! For instance, row-level locks allow multiple transactions to access different rows in the same table, while table-level locks prevent any other transaction from accessing the entire table.
What are the trade-offs of using finer lock granularity?
Finer lock granularity can improve concurrency but may increase overhead due to more locks being managed, which can lead to performance issues.
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