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Data Replication
"If a relation R has its copies kept at two or more sites, then it is considered replicated".
But why do we replicate a relation?
There are several advantages and drawbacks of replication of relation
Homework chapter 10 no 3
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Critically evaluate the bulleted list of information-related items in this case study. How are each contradictory to the notion of being an information-literate knowledge worker?
Problem : (b) A deductive database system is essentially the outcome of applying mathematics logic to database management, where logic is used for both data representation and
explain the steps for reduction of er model into relational model?
write program
Define According to the levels of abstraction, the schema at the intermediate level is called Ans: As per to the levels of abstraction, the schema at the intermediate level is
Write short notes on tuple relational calculus. The tuple relational calculation is anon procedural query language. It defines the desired information without giving a particul
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
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