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Advantages And Drawbacks Of Ddbms
There are various reasons for building distributed database systems, with sharing of data, reliability and availability, and speedup of query processing. Though, along with these advantages come various drawbacks, including software development cost, greater potential for increased processing overheads, and bugs.
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
Objectives Define the terms RECOVERY and INTEGRITY; Define Recovery Techniques; Explain Error and Error detection techniques, and Define types of Authorisation.
example of embedded SQL query
Discuss the methods for a hash file to expand and shrink dynamically. What are the advantages and disadvantages of each? The hashing methods that permit dyanamic file expansi
Question: In relation to distributed database answer the following questions: (i) Give a brief definition of distributed database. Support your answer with an appropriate di
Cardinality shows the number of instances of an entity associated with another entity participating in a relationship. Depend on the cardinality binary relationship can be further
Operator Precedence The basic operators used in SQL are * / - + Operators of the similar priority are evaluated From Left to right Parentheses are used to force priorit
brief history,definition,current trends and future trends if any of data fragmentation
#question.what is mapping constraints and types?.
coventions for displaying an ER schema as ER diagram
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