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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.
What are shortcomings in structured approach? Structured methodology treats data and their behaviours separately, and this makes it harder to isolate changes. If changes are re
brief history,definition,current trends and future trends if any of data fragmentation
Explain the two types of participation constraint. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i
what do you mean by consistency in rdbms?
I need to Map an E-R diagram to a relational schema
Describe the candidate key functions ? Candidate Key and Alternate Key: In some instances, an entity will have more than one attribute which can serve as a primary key. Any key
Which two tools are used to administer users for Active Directory?
Two Phase Locking (2PL) The two-phase locking protocol having of two phases: Phase 1 : The lock acquisition phase : If a transaction T needs to read an object, it wants to
PART MARKING: For this section, we will use part marking. This means we will supply model answers to all questions but we will only mark six questions. We will choose these randoml
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
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