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What is advantage of two-way association?
Two-way association advantages are following:
a) Independent of the classes.
b) Useful for existing predefined classes that are not modified.
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
find a name whose address is erode from student table
Explain the database Planning Project ?
Explain the Strategy of Database Planning ?
What is Candidate Key Super Key or Candidate Key: It is such an attribute of a table that can uniquely recognize a row in a table. Generally they have unique values and can n
What are the ways in which the variable-length records arise in database systems? Storage of many record types in a file. Record types that permit variable lengths for one o
Complete replication: It implies maintaining of a whole copy of the database at every site. Thus, the reliability & availability and performance for query response are maximized.
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I have been given 8 differebt data warehouseing failure case studies. I need to question 4 questions for each
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