Review of Short Phrases and Links|
This Review contains major "Distributed Database"- related terms, short phrases and links grouped together in the form of Encyclopedia article.
- A distributed database is a collection of multiple, logically interrelated databases distributed over a computer network.
- A distributed database is a network of databases managed by multiple database servers that appears to a user as a single logical database.
- A distributed database is one that can be dispersed or replicated among different points in a network.
- Distributed database is a database that consists of two or more data files located at different sites on a computer network.
- A distributed database is a set of databases stored on multiple computers that typically appears to applications as a single database.
- Most techniques designed for distributed database systems which statically exploit schema and network information no longer apply.
- M. T. Ozsu and P. Valduriez, Principles of distributed database systems, 2nd ed.
- Distributed database systems often locally replicate remote tables that are frequently queried by local users.
- Besides distributed database replication and fragmentation, there are many other distributed database design technologies.
- The terms "distributed database" and "database replication" are also closely related, yet different.
- A Distributed Database Management System (DDBMS) consists of single logical database that is split into a number of fragments.
- A centralized distributed database management system ( DDBMS) manages the database as if it were all stored on the same computer.
- Distributed Database A Database where the Database Management System is distributed across multiple nodes or processors but managed as a single entity.
- Difficult to maintain integrity --- in a distributed database enforcing integrity over a network may require too much networking resources to be feasible.
- Heterogeneous distributed database uses multiple DBMS's (eg: Oracle and MS-SQL and PostgreSQL).
- There is no need for a user or application to know the specificlocation of data in the ITASCA distributed database.
- Long-duration transactions allow users to check objects out of the shared, distributed database into their private databases.
- Modularity --- systems can be modified, added and removed from the distributed database without affecting other modules (systems).
- Now with the combination of these two technologies, distributed database technology may change the mode of working from centralized to decentralized.
- Homogeneous distributed database uses one DBMS (eg: Oracle).
- Whether the distributed database is replicated or partitioned, a single DBMS manages the database.
- The following sections explain how applications access data in a distributed database.
- However, the applications that work with the distributed database must understand the functionality that is available at each node in the system.
- A homogeneous distributed database system is a network of two or more Oracle databases that reside on one or more machines.
- To facilitate application requests in a distributed database system, Oracle uses database links.
- An Oracle distributed database system can be transparent to users, making it appear as though it is a single Oracle database.
- For example, local autonomy, synchronous and asynchronous distributed database technologies.
- Distributed database applications typically use distributed transactions to access both local and remote data and modify the global database in real-time.
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