Difference between Lock and Latch

Locks everywhere is a good start to understand how SQL Server provides logical consistency. Every operation has a lock and latch. What does Latch mean? Latch protects memory on Buffer Pool, is a method that provides physical consistency. SQL Server does operations in memory, that means, it read the page from disk and put that … Continue reading Difference between Lock and Latch

Locks everywhere

In this post I'm going to talk about locks on SQL Server. Locks are necessary, they are used in all operations in the database. Don't get confused about blocking, locking and blocking are totally different. When we talk about lock, doing something in the database, like an update and select though will cause a type … Continue reading Locks everywhere