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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
Explain sorted File with advantages? Sorted file The sort utility shall perform one of the subsequent functions: 1.Sort lines of all the named files together and write the
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
define attribute inheritance with example?
What are the various symbols used to draw an E-R diagram (any 3)?
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
Synonyms It allows short names or alternative names for objects. Example : CREATE SYNONYM D30 FOR EMPD30; Now if we give command:
sql is relationally complete-justify
Illustrate the term- Abstracting Out Common Behaviour Inheritance is not every time recognised during analysis phase of development, thus it is necessary to re-evaluate object
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
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