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 15175.

Error number: 15175

Severity level: 16

Event logged: Login ‘%s’ is aliased or mapped to a user in one or more database(s). Drop the user or alias before dropping the login.