Lesson Learned #103: Performance issue retrieving the deadlock list in Azure SQL Database. - Microsoft Tech Community
![SQL SERVER - Relationship with Parallelism with Locks and Query Wait - Question for You - SQL Authority with Pinal Dave SQL SERVER - Relationship with Parallelism with Locks and Query Wait - Question for You - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/b/parallel-lock-query-wait.png)
SQL SERVER - Relationship with Parallelism with Locks and Query Wait - Question for You - SQL Authority with Pinal Dave
![SQL SERVER - How to get historical deadlock Information from System Health Extended Events? - SQL Authority with Pinal Dave SQL SERVER - How to get historical deadlock Information from System Health Extended Events? - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/wp-content/uploads/2017/01/sys-health-deadlock-01.jpg)
SQL SERVER - How to get historical deadlock Information from System Health Extended Events? - SQL Authority with Pinal Dave
![SQL SERVER - Timeout expired. The timeout period elapsed prior to completion of the operation - SQL Authority with Pinal Dave SQL SERVER - Timeout expired. The timeout period elapsed prior to completion of the operation - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/a/timeout-02.jpg)