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Consider the following relational scheme: R (a,b,c,d,e,f) and its corresponding set of FDs {d→ a, be → c, ac → e, b → f, f → d, a → c}. a. Is the following decomposition i) non
One-way Associations When an association is traversed only in the one direction, then it is implemented as a pointer i.e.an attribute which contains an object reference. If mu
What is deadlock? Neither of the transaction can ever proceed with its normal implementation. This situation is known as deadlock.
Illustrate about the advanced object design Advanced object design is a complex task. The objects discovered through analysis serve as a skeleton of design. The operations reco
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Q. Define a weak entity set and its identifying relationship. List the necessary conditions for a meaningful identifying relationship set of a weak entity set. Entity is a t
What are the advantages of object ID? The main advantages of Object IDs are as below: i) IDs are not changing ii) IDs are completely independent of the changes in data v
data models are being replaced over years. Reasons and why does that happen?
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
In this practical assignment, we will run through a complete database application development cycle, starting with the schema design, from an initial data import to database applic
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