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Explain the Project-Join normal form
A relation R is in PJNF along with respect to a set of functional dependencies D if for all join dependencies of the outline *(R1, R2, ...,Rn) and R = R1 U R2 U ..., URn at least one of the subsequent holds:
*(R1, R2, ...,Rn) is trivial
Each Ri is a superkey of R
Advantages of Database management system Let us summarize the advantages. Reduction of Redundancy: This is perhaps the most important advantage of using DBMS. Redundancy i
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
Problem : AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
Question: (a) What do you meant by content management and briefly describe four major components of a Content Management System? (b) Explain key benefits of a Content Manage
Draw the precedence graph of the following schedule and determine whether the schedule is serializable. (Note that all instructions, except lock and unlock, are omitted. We assume
This project will involve designing and creating a database for an organization. In the design of a database, there is no single "perfect" design. So your database design may not
Which method is used to key transformation ? A hash method is used to key transformation.
define anomalies and different types of anomalies with example
why are older data models are being replaced by new data models
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
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