Client Server Database Architecture Client server database architecture consists of two logical components. One is “Client” and the other one is “Server”. Clients are those who send the request to perform a specific task to the server. Servers are normally receive the command sent by the clients, perform the task and send the appropriate result … Read more
Loosely And Tightly Coupled Systems Some, but not all, distributed systems are loosely coupled. Coupling refers to the degree to which two or more processes are interdependent. We say two things are tightly coupled when they are interdependent and loosely coupled when they are independent. Tight and loose coupling are not binary positions, but … Read more
Heterogeneous database/federated database/Multi database Heterogeneous Distributed Databases A system might be considered heterogeneous when it has different operating system at each site, and different DBMS at each site. A system in which each server is autonomous and centralized DBMS that has its own local users is referred to as HDMS. The term Federated Database system … Read more
Distributed database system A distributed database is basically a database that is not limited to one system, it is spread over different sites, i.e, on multiple computers or over a network of computers. A distributed database system is located on various sites that don’t share physical components. This may be required when a particular database … Read more