Microsoft SQL Server
sp_cycle_errorlog
Sometimes the error log files in SQL Server get too large to view and manage in a practical way in Management Studio. SQL Server keeps a number of log files (between 6 and 99), and a new error log file is created each time the SQL Server Service is restarted.
If you want to cycle the logs more frequently without a service restart, you can do so with the system stored procedure sp_cycle_errorlog. This way, you can get smaller and more log files.