Minimize Downtime with Immediate Upgrade of Data in Databases

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for updating data stored within the database. In some implementations, actions include providing a plurality of cut-off dates, for each cut-off date in the plurality of cut-off dates determining a total time based on respective times associated with a plurality of tasks to provide a plurality of total times, each total time corresponding to a respective cut-off date, selecting an actual cut-off date based on the plurality of total times, and updating data within the database using the actual cut-off date.