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Increased parallelism: Since the replicated date has several copies a query can be distributed or can be answered from the smallest loaded site. Also, with more replicas you have greater chances that the required data is found on the site where the transaction is implementing. Hence, data replication can minimise movement of data among sites.
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Question: Consider the following database relations for a textbook ordering system used by a college bookshop: Book (b-copy#, bname, ISBN#, author, price, subject) Order (s#
I am doing research in this area, especially in sime join and join efficacy when several relations have been queried. Relations located in different sites. I need something like n
A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
Implementation and SQL Applications
Assignment #1 Data Management The questions on this exam are based on the Baxter Aviation case scenario. 1. (5 points) The systems analyst proposes the following two relationshi
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
What is transaction? Collections of operations that form a single logical unit of work are known as transactions.
Process of Adjustment of inheritance During object design, inheritance is readjusted by rearranging classes and operations, and abstracting common behaviour.
diagrams and meaning
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