A decentralized database is a database which is installed on different systems that are  located at different locations. So decentralized database doesn’t have a single location, and instead, pieces of information are stored in different locations which are all connected to each other. Processing of the data in this type of database is distributed between different nodes in a network.

In short we can say,

• There is no central storage in decentralized database.
• All the nodes in Peer to Peer network have same pieces of information data.