Abstract:
Nowadays, most of the organizations need to
share their related data to provide better performance
and availability of data for users located at any site.
Because of enterprises’ negotiation of sharing their
databases, the related distributed databases become
developed to support the satisfaction of users who can
access any data from any site transparently. The
proposed system is a client-server system that provides
sending, receiving and updating transactions on distributed
databases. Actually each database stands on as central
publisher and when they want to access other database, they
behave as client and when other database tries to initiate
them, they are being as a server. There are three types of
client-server system, one client, one server: many clients,
one server: and one client, many servers. In this system, one
client, many servers format, merge replication system is
presented. The main motivation is to improve location
transparency by accessing any distributed database from
one site. This system evolves to implement an airline
reservation system by using merge replication method based
on distributed database system to achieve data availability,
high throughput, data consistency and location
transparency.