1. A computer-implemented method for controlling capacity of a database system that includes one or more database nodes operable to process data stored in a database, wherein each one of the database nodes can use one or more resources in connection with the processing of the data stored in the database, the computer-implemented method comprising: effectively changing capacity of the database system from a current computing capacity to another computing capacity that is different than the current capacity, by causing usage capacity of at least one of the resources to be changed from a current usage capacity to another usage capacity different than the current usage capacity.