[Solved] What is the primary reason PostgreSQL uses concurrency control? — Ans: To ensure multiple transactions do not interfere and cause inconsistent data | PostgreSQL

PostgreSQL - Transactions and Concurrency

What is the primary reason PostgreSQL uses concurrency control?

ATo ensure multiple transactions do not interfere and cause inconsistent data

BTo speed up query execution by parallel processing

CTo reduce disk space usage during transactions

DTo automatically backup data during updates

Step-by-Step Solution

Solution:

Step 1: Understand concurrency control
Concurrency control manages simultaneous operations to maintain data integrity.
Step 2: Identify the main goal
It prevents conflicts and inconsistencies when multiple transactions access the same data.
Final Answer:
To ensure multiple transactions do not interfere and cause inconsistent data -> Option A
Quick Check:
Concurrency control prevents data conflicts [OK]

Quick Trick: Concurrency control prevents conflicting data changes [OK]

Common Mistakes:

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What is the primary reason PostgreSQL uses concurrency control?