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Use of partial data by applications : In common, applications work with views rather than whole relations. Thus, it may be more appropriate to work with subsets of relations rather
Hierarchical
Which two tools are used to administer users for Active Directory?
What is NULL? Simply NULL means not in value.
Funky Festivals Specification Funky Festivals organise music festivals which take place at various venues throughout the UK. A venue needs to be booked before a Festival can t
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Differentiate between Key and superkey? Key and superkey - A key a single attribute or a combination of two or more attributes of an entity set in which is used to identify o
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
I have been given 8 differebt data warehouseing failure case studies. I need to question 4 questions for each
Give the reasons for allowing concurrency? The reasons for allowing concurrency is if the transactions run serially, a short transaction might have to wait for a preceding long
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