PostgreSQL - Transactions and Concurrency
Why does PostgreSQL use concurrency control instead of just locking the whole database during updates?
Why does PostgreSQL use concurrency control instead of just locking the whole database during updates?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand locking scope impact
Locking the whole database would block all users, causing delays.Step 2: Benefit of concurrency control
Concurrency control allows many users to work at once efficiently by locking only needed parts.Final Answer:
To allow multiple users to work efficiently without waiting too long -> Option BQuick Check:
Concurrency control = Efficient multi-user access [OK]
Quick Trick: Fine-grained locks improve multi-user efficiency [OK]
Common Mistakes:
- Thinking whole database locking is faster
- Assuming concurrency control prevents all changes
- Believing PostgreSQL lacks locking support
Master "Transactions and Concurrency" in PostgreSQL
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