What Is Sch S Lock
A Sch-S Lock Is a Schema Stability Lock. It Is Taken to Ensure That the Structure of the Table Doesn’t Change. This Includes Adding/Removing Columns, Etc...
A Sch-S lock is a Schema stability lock. It is taken to ensure that the structure of the table doesn’t change. This includes adding/removing columns, etc. NOLOCK hints and isolation levels affect the locking and versioning of the data in the table, not the structure of the table itself.
What is a SQL deadlock?
A deadlock occurs when 2 processes are competing for exclusive access to a resource but is unable to obtain exclusive access to it because the other process is preventing it. … SQL Server automatically detects when deadlocks have occurred and takes action by killing one of the processes known as the victim.
How do I monitor a lock in SQL Server?
- Using the sp_lock stored procedure.
- Querying the syslockinfo table directly.
- Viewing locking activity with SQL Enterprise Manager.
- Viewing locking activity with SQL Profiler.
- Viewing the current quantity of locks with Performance Monitor.