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The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
Update Anomaly : This anomaly is occurred due to data redundancy. Redundant information makes updates more complex since, for example, varying the name of the instructor of MCS-014
Discuss how the bi-directional Implementations are made. In bi-directional implementation of the association, a pair of references must implement every link. The declarations a
discuss the purpose of the concurrency control?
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
what is attribute is attribute inheritance in dbms?
Chapter 10a review questions
An entity type usually has an attribute whose values are distinct for every individual entity in the collection. Such an attribute is known as a key attribute and its values can be
describe objectivde of file organisation
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