In this lecture, we study Multiple Granularity Locking, an advanced concept in concurrency control that allows locking at different levels of a database hierarchy.
You will understand how intention locks help manage locks efficiently in large databases.
Multiple Granularity Locking
📌 Topics Covered
• Need for Multiple Granularity Locking
• Lock Hierarchy (Database → Table → Page → Tuple)
• Intention Locks
– IS (Intention Shared)
– IX (Intention Exclusive)
– SIX (Shared with Intention Exclusive)
• Compatibility Matrix
• Locking Protocol Rules
• Examples and problem-solving approach
🎯 Why this topic is important?
It improves concurrency and performance while maintaining correctness in large database systems.
🎯 Important for:
GATE CSE (Not in GATE DA)
Concurrency Control
Transaction Management
📚 Full Playlist:
GATE CSE DBMS: https://www.youtube.com/playlist?list=PL8RhRpQueHLsbhU1sOf-Ca04PxDZpLGV8
Efficient locking → Better concurrency → Optimized DB performance 🚀
#DBMS #ConcurrencyControl #Locking #GATECSE
