SQL Server connectivity errors can have many causes, including network configuration, authentication, name resolution, firewall rules, and Transport Layer Security (TLS) settings. This troubleshooting ...

This problem may occur when a server login has been deleted or when a database is migrated or restored to a different SQL Server instance without its corresponding server-level logins being recreated.

Blocking is normal in any lock-based relational database, but persistent or long-running blocking degrades throughput and causes application timeouts. This article describes what blocking is in SQL ...

description Learn how to troubleshoot SQL Server blocking problems, identify head blockers, diagnose long-running transactions, and resolve common scenarios. Blocking is normal in any lock-based ...

With over two decades of IT experience, Microsoft data platform MVP Thomas LaRock has seen nearly every SQL Server troubleshooting nightmare under the sun. In an upcoming session called "The Top 5 ...