6. Loading and Unloading Databases : Unload Operation : Locking While Unloading a Database
 
Share this page                  
Locking While Unloading a Database
When you perform the unload database operation or execute the unload command file, the locking system takes shared locks on the system catalogs and tables being unloaded.
When you execute the reload command file, the locking system takes exclusive locks on the system catalogs and user tables being reloaded.