When you are driving on a highway, you look forward to the sign boards give you guidance while you are busy driving. These sign boards tell you when your exit is approaching and how you should be dealing with the same. I consider such sign boards inside SQL Server as “Error Messages”. I rely on them so heavily to give me insider information to a possible solution. Not always are these messages super easy to understand. Take for instance the following message. While trying to create a database on my lab server, I got below error related to System.DBNull:

Sometimes I feel that one error can be caused due to multiple reasons and there are different ways to solve it. I already have two blogs for the error message. As they say, there are is no silver bullet when it comes to solving some of the issues. SQL Server might through a generic message, but it all lead to the same problem related to master database: