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 15591.

Error number: 15591

Severity level: 16

Event logged: The current security context cannot be reverted using this statement. A cookie may or may not be needed with ‘Revert’ statement depending on how the context was set with ‘Execute As’ statement.