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explain normalisation
Given the subsequent relations: vehicle (reg_no, make, colour) Person (eno, name, address) Owner (eno, reg_no) Write expressions
INSERT INTO command : Values can be inserted for all columns or for the selected columns Values can be given by sub query. In place of values parameter substitution
Project: Microsoft Access You have been asked by the ABC Tanning Salon to create a database that can be used to track the salon's customers. You are to create a table in Access
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
what is multivalued dependency
First Normal Form and second normal form First Normal Form (1NF) A relation is said to be in 1NF if it having no non-atomic values and each row can give a unique combinat
What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
Explain what is Aggregation? Aggregation: Aggregation is an significant concept in database design whereas composite objects could be modelled during the design of database a
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
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