database for online assignment system, Database Management System

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Determine the operation that do not participate to be union, 1. Which relat...

1. Which relational algebra operations do not need the participating tables to be union-compatible? Ans: Join is the relational algebra operations that do not need the particip

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3NF Normal Form A relation schema R is in 3NF if it is in 2NF and for each FD X A either of the following is true X is a Super-key of R. A is a prime attribute of R

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Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod

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Task partitioning, Task Partitioning, Sequencing and Project Planning T...

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Intersection, If R1 and R2 are two union compatible relations or functions,...

If R1 and R2 are two union compatible relations or functions, then the result of R3 = R1 ∩R2 is the relation that contains all tuples that are in both the relations In other words,

Explain domain-oriented relational calculus?, How does Tuple-oriented relat...

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One to many - relationship cardinality, One-to-many : An entity in A is rel...

One-to-many : An entity in A is related with any number of entities in B. An entity in B is related with at the most one entity in A. Example: Relationship between faculty and d

Appointment systems with sms and voice call feedback, Automated system for ...

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