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Explain trivial dependency?
Functional dependency of the form α ->β. is trivial if α C β. Trivial functional dependencies are satisfied by all the relations.
What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
Which component is not included in database environment ? A users component is not included in database environment.
Ask q“A database will be made to store information about patients in a hospital. On arrival, each patient’s personal details (name, address, and telephone number) are recorded wher
what is attribute is attribute inheritance in dbms?
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
the of super market system done in database
These permit the user to unload a database or parts of a database and reload the data on the similar machine, or on another machine in a dissimilar location. This can be useful in
I have to solve a problem using access
Cardinality shows the number of instances of an entity associated with another entity participating in a relationship. Depend on the cardinality binary relationship can be further
Question: (a) List four disadvantages of the File Processing System as compared to the Database Systems. (b) The integrity of a database is enforced by integrity rules. One
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