To take full advantage of a given computer system or network, Oracle Database enables processing to be split between the database server and the client programs. The computer running the RDBMS handles the database server responsibilities while the computers running the applications handle the interpretation and display of data.
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Application Architecture
The application architecture is the computing environment in which a database application connects to an Oracle database. The two most common database architectures are client/server and multitier.
- In a client/server architecture, the client application initiates a request for an operation to be performed on the database server.The server runs Oracle Database software and handles the functions required for concurrent, shared data access. The server receives and processes requests that originate from clients.
- In a traditional multitier architecture, one or more application servers perform parts of the operation.An application server contains a large part of the application logic, provides access to the data for the client, and performs some query processing. In this way, the load on the database decreases. The application server can serve as an interface between clients and multiple databases and provide an additional level of security.
A service-oriented architecture (SOA) is a multitier architecture in which application functionality is encapsulated in services. SOA services are usually implemented as Web services. Web services are accessible through HTTP and are based on XML-based standards such as Web Services Description Language (WSDL) and SOAP.
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Oracle Database can act as a Web service provider in a traditional multitier or SOA environment.
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