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Three key issues we have to consider:
• Data Allocation: where are data placed? Data should be stored at site with "optimal" distribution.
• Fragmentation: relation may be divided into a number of sub-relations (called fragments) , which are stored in
different sites.
• Replication: copy of fragment may be maintained at several sites.
What else can I help you with?
What is centralized database design?
Centralized design is one of the two major methods of designing a networked database, the other being distributed design. In a centralized design, all the database table schema and the data reside in one place where all of the users access it (i.e., central to the users.) Conversely, a distributed design replicates the schema in multiple places and segments the data amongst the multiple sets of tables. Each group of users accesses a particular distributed set of tables with the data relevant to their group. This improves data security and retrieval time for the users at the cost of increased complexity of database maintenance and backup.
Explain architecture of Distributed Database systems Also explain the reasons for building distributed database systems?
1 Explain architecture of Distributed Database systems? Also, explain the reasons for building distributed database systems?
When was Distributed Database Consulting created?
Distributed Database Consulting was created in 1997.
Is a dhcp database a distributed database similar to a dns database?
no
What are the distributed database access primitives?
dISTRIBUTED. DATABASE. ACCESS. PRIMITIVES. In the examples of the ... usemore powerful primitives
What are the advantage of distributed database over centralized database?
The database can be of two types either distributed or centralized . In distributed database the data is in different systems. In centralized database the data is in a single central system.We can categorize database as either distributed or centralized . In centralized database the data is in a single centralized system. While In distributed database the data is in different systems .
Structure of a distributed database system?
structure of distributed databases
What are application for distributed database?
A distributed database is a database in which portions of the database are stored on multiple computers within a network. Users have access to the portion of the database at their location so that they can access the data relevant to their tasks without interfering with the work of others. A centralized distributed database management system manages the database as if it were all stored on the same computer.
What has the author Wesley W Chu written?
Wesley W. Chu has written: 'Distributed Database Systems - Distributed Systems -' 'Distributed Processing and Database Systems'
Features of distributed database?
distributed data base means noting
Explain three disadvantages of centralized database and distributed database?
what are the disadvantages of centralized database system
What is database design?
Design of the database (Database Design) refers to a given application environment, optimize the structure of the database, the database and applications, which can efficiently store data to meet the application needs of various user information needs and processing requirements). At www. myelibrary.net.In you can clearly understand what is the database design.
