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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.
What Command You Use What Day of the week were you born
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
Explain three main attributes of data.
One-to-one relationship: For every 1:1 relationship type R in the ER diagram including two entities E1 and E2 we take one of entities (say E1) preferably with total participatio
what is binary relationship
Why is need for the multiple access paths?
What is a virtual table that draws its data from the result of an SQL SELECT statement? View is a virtual table that draws its data from the result of an SQL SELECT statement.
Which is a legal expression in SQL? SELECT NAME FROM EMPLOYEE is a legal expression in SQL.
what is meant semantic query optimization? how does it differ from other query optimization techniques?
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