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Explain degree of relation? Degree of a Relation - The degree or arity of a relation is the number of attributes n of its relation schema.
Exclusive lock It is asked for by a transaction on a data item that it wants to update. No other transaction can put either a shared lock or an exclusive lock on a dat
How to reduce data redundency
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
What are ways of finding out either an update is required or not for derived attributes? The ways to find out an update is required or, not are as: Explicit update
Project Description: Hi I'm seeking someone to make my dBase application work. I know it's not a 'modern' language but it's what I know. I have written an order program and I ne
What are axioms? Axioms or rules of inference give a simpler technique for reasoning about
explain the mapping constraints
recovey techniques based on deferred update and immediate update
what factors might influence a company to outsource its IT infrascture.
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