The Starfleet database was a record of historical data maintained by Starfleet since the mid-22nd century. The database continued to be used during the 23rd century and 24th century by the Federation Starfleet.
In 2151, Sub-Commander T'Pol ran a check through the Starfleet database and found that Charles Tucker III was the first recorded Human male to become pregnant. (ENT: "Unexpected")
In 2256, at the request of Saru, the Starfleet database listed the most decorated captains in Starfleet history: Robert April, Jonathan Archer, Matthew Decker, Philippa Georgiou and Christopher Pike. (DIS: "Choose Your Pain")
In 2257, after a successful command transfer, the personnel file of Christopher Pike was displayed on the main viewing screen of the USS Discovery bridge. This file was classified. (DIS: "Brother")
In 2373, Captain Kathryn Janeway searched the classified Starfleet database for information on the Borg to aid in the USS Voyager's trip through their space. (VOY: "Scorpion")