How to Create Deadlocks and Troubleshoot Them

Watch in awe and wonder as Brent Ozar creates a deadlock, then uses sp_BlitzLock after the fact to show you which queries and tables were involved.

The Many Levels Of Concurrency

When designing for high concurrency, most people look to the hardware for answers. And while it’s true that it plays an important role, there’s a heck of a lot more to it.

Concurrency in System Versioned Temporal Tables

Dealing with High Concurrency with Table Hints

Systems with a large number of requests on a critical database table are prone to blocking and slowness. We take a look at getting things done using T-SQL table hints.

SQL Server Concurrency: Locking, Blocking and Row Versioning

Your application can have impeachable indexes and queries, but they won't help you if you can't get to your data because another application has it locked. That's why every DBA and developer must understand SQL Server concurrency and how to troubleshoot excessive blocking or deadlocking. Kalen Delaney's book is your guide.

Isolation levels

Free eBook: Understanding SQL Server Concurrency

When you can’t get to your data because another application has it locked, a thorough knowledge of SQL Server concurrency will give you the confidence to decide what to do.

SQL Server Concurrency: Locking, Blocking and Row Versioning

Your application can have impeachable indexes and queries, but they won't help you if you can't get to your data because another application has it locked. That's why every DBA and developer must understand SQL Server concurrency and how to troubleshoot excessive blocking or deadlocking. Kalen Delaney's book is your guide.

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RE: How to check whether cusor is open or not?

Try using "IF Cursor_Status('variable', '@my_cursor') = -1"

RE: Calling a stored procedure on data in a linked server

Create the stored procedure on the server where the linked server is created. Access all the data from the linked server in the stored procedure. Call the stored procedure from asp.net.If I have understood your question correctly this should do the trick.Yash