1. A method for refreshing a virtual database, the method comprising: receiving, by a storage system, database blocks for different point-in-time copies of a source database, wherein each database block includes metadata associated with the database block; transforming, by the storage system, data of a received database block to a format distinct from a format of the received database block; storing, by a storage system, point-in-time copies of the source database, wherein a point-in-time copy shares one or more stored database blocks with one or more other point-in time-copies, the point-in-time copy comprising database blocks storing the transformed data; creating a virtual database comprising database blocks based on a first point-in-time copy of the source database stored on the storage system, the virtual database sharing one or more database blocks with other virtual databases of the storage system; generating one or more reports based on the data of the virtual database; receiving a request to refresh the virtual database, the request to refresh received after generating the one or more reports; responsive to receiving the request to refresh the virtual database, refreshing the virtual database comprising: identifying a latest point-in-time copy representing a recent point-in-time copy of the source database stored in the storage system, and updating the virtual database to use database blocks of the latest point-in-time copy; and responsive to refreshing the virtual database, refreshing the one or more reports, the refreshing comprising regenerating the one or more reports of the virtual database based on the latest point-in-time copy.