9 Database Locks Explained in 60 Seconds 🚀 | Boost Performance & Avoid Deadlocks!#shorts

This image explains 9 types of database locks that control how multiple users access data at the same time.
Shared Lock (S Lock): Multiple users can read data together, but no one can modify it.
Exclusive Lock (X Lock): Only one transaction can read & write — others must wait.
Update Lock (U Lock): Prevents deadlocks when data is about to be updated.
Schema Lock: Protects database structure (like tables/columns) from changes.
Bulk Update Lock: Used during large data insert operations to improve performance.
Key Range Lock: Prevents “phantom reads” when working with indexed data ranges.
Row-Level Lock: Locks only a single row → better concurrency.
Page-Level Lock: Locks a group of rows (page) → balance of speed & control.
Table-Level Lock: Locks the entire table → simple but reduces performance.
👉 Overall, this image shows how different locks help maintain data consistency, avoid conflicts, and manage performance in databases.

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