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Which method of access uses key transformation?
A Hash method of access uses key transformation.
why data in an RDMS need to be normalised
does tables are called relations
What is the use of integrity constraints? Integrity constraints make sure that changes made to the database by authorized users do not result in a loss of data consistency. The
What is a PROJECT operation? The project operation is a unary operation that returns its argument relation with particular attributes left out. Projection is shown by pie (π).
What are the types of reference?explain it with suitable examples? Object oriented language given the ability to refer the object attribute of the type can be referred to the s
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
what is physical data structure
i am not clear with the climetic condition of the north indian plain. can u plz explain it for me
How do you find the final model after iterative analysis? Why is iterative analysis of any of the problem needed? The final model serves as the base for system architectur
Consider the table student and list names of students in the departments other than maths and computer. SELECT std_name FRM student WHERE dept_name NOT IN (‘Maths','Computer);
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