The best way I have learnt about building SQL Server AlwaysOn Availability Group is by contacting my close friends who have written the only book on this topic. It is not common that I ping them for such technical queries, but that is what friendship is made off. Recently, while preparing a demo for the AlwaysOn Availability Group, I ran into interesting issue and was able to fix it as well. Let us learn about the Database Mirroring login error.
Question: How to Invalidate Procedure Cache in SQL Server?
This is one of the most common error searched on my blog search https://blog.sqlauthority.com/search-sqlauthority/ and lately I realized that I have not written any blog about the cause of such error and fixing that. Let us learn about how to fix the error login failed.