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Define the notation for classes and atrributes The notation for class, attribute, and operations are shown below: Figure: Class with attributes and operations A
A set of possible data values is called? A set of possible data values is called as domain.
For each m:n relationship type R, we make a new table (say S) to represent R. We also contain the primary key attributes of both the participating entity types as a foreign key att
A field-groups statement or an insert statement reverses storage space and transfers values. False.
what characterizes the levels in RAID technology
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
CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);
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.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Define various ways in which SELECT statement can be used for record selection Technology? SELECT gives you control over a number of aspects for record retrieval: 1) Which
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