Microsoft SQL Server database ranks third in the relational database, second only to Oracle and MySQL database. when using it, it is inevitable to encounter various problems and warnnings. You may be dba or a developer, I hope this content can help you solve SQL Server error number 18345.

Error number: 18345

Severity level: 10

Event logged: Reason: Failed to open the database configured in the login object while revalidating the login on the connection.