Distributed means the partitioning (dividing up) of the application and/or database into
parts and the placement of different parts on different computing devices, all connected by
A distributed database is a collection of multiple, logically interrelated databases distrib-
uted over a computer network; stores data on multiple computers over the network and per-
mits access from any node to the joint data .
A distributed database management system (DDBMS) is a software system that permits
the management of the distributed databases and makes the distribution transparent to the
Database users can access the distributed database through local applications applications
which do not require data from other sites and global applications applications which do
require data from other sites. A distributed database does not share main memory or disks.