A critical component of real-time systems in the database, which is used to store external input such as environmental readings from sensors, as well as system information. Typically these databases are large, due to vast quantities of historical data, and are distributed, due to the distributed topology of the devices controlling the application. Hence, sophisticated database management systems are needed. However, most of the time database systems are hand-coded. Off-the-shelf database management systems are not used due in part to a lack of predictability of response [1, 2]. We motivate the use of partial computation of database queries as a method of improving the fault-tolerance and predictability of response in real-time database systems.