Ensuring data consistency during simultaneous access
Optimizing query performance
Backing up data
Concurrency control in a DBMS ensures data consistency during simultaneous access by multiple transactions.
Questions & Step-by-step Solutions
1 item
Q
Q: What is concurrency control in a DBMS?
Solution: Concurrency control in a DBMS ensures data consistency during simultaneous access by multiple transactions.
Steps: 6
Step 1: Understand that a DBMS (Database Management System) is a software that helps manage databases.
Step 2: Know that multiple users or processes can access the database at the same time, which is called 'concurrent access'.
Step 3: Realize that when multiple transactions (operations) happen at the same time, they can interfere with each other.
Step 4: Learn that concurrency control is a method used to manage these simultaneous transactions.
Step 5: Understand that the goal of concurrency control is to keep the data consistent and accurate, even when many transactions are happening at once.
Step 6: Recognize that concurrency control uses techniques like locking, timestamps, and versioning to prevent conflicts.
