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define anomalies and different types of anomalies with example
If the insertion violates one or more constraints, then two alternatives are available: Default option: - Insertion can be discarded and the reason of refusal can also be ex
Why does a DBMS query language is designed? A DBMS query language is designed to support end users who use English-like commands. support in the development of complex applicat
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
how map binary relation one to one
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
Consider a table student (std_id, std_name, date_of_birth, percent_marks, dept_name). Write a QBE query to display names of Computer Science department students who have scored mo
Determine the concept of Process Process: A process transforms the data values. It is represented as ellipse containing a description of transformation. Each procedure has a
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
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