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 18458.

Error number: 18458

Severity level: 14

Event logged: Login failed. The number of simultaneous users already equals the %d registered licenses for this server. To increase the maximum number of simultaneous users, obtain additional licenses and then register them through the Licensing item in Control Panel.%.*ls