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An entity set that does not have sufficient attributes to form a primary key is called?
An entity set that doesn't have sufficient attribute to form a primary key is known as weak entity set.
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Construct an ER diagram for a hospital along with a set of patients and a set of medical doctors Associate with every patient a log of the several tests and examinations conducted.
Design Documentation The Design Document shall be an extension of Requirements Analysis Design. "The Design Document will comprise a revised and much more detailed descrip
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
In which format database schema is written ? Data base schema is written in the DDL format.
What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
Need For Distributed Database Systems A distributed database is a set of database kept on multiple computers that appears to applications as a one database. As a result, an app
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
Describe about Use Case and external case in DFD The processes are transformed those into the Use Case and external case in DFD has same characteristics which of an actor in O
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