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What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
basic structure of xml
By which techniquesTransaction processing is associated? Transaction processing is associated by producing detail, summary, or exception reports and recording a business activi
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
PART MARKING: We will only mark TWO of the four questions below but you must submit answers to all four. We will choose the questions we mark randomly and we will supply you with
Relational and E-R Model There are three types of constraints on relational database that have: DOMAIN CONSTRAINT PRIMARY KEY CONSTRAINT INTEGRITY CONSTRAINT
why shadow copy technique is used?
What is Cross Product? Simply Cross product is Binary Operator
Define the phases of two phase locking protocol Growing phase: a transaction may get locks but not release any lock. Shrinking phase: a transaction might be release locks bu
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