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 17121.

Error number: 17121

Severity level: 10

Event logged: SQL Server is started with trace flag %d, this may cause user to see some error messages masked using ‘%ls’.