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Define in which normalisation form if an attribute of a composite key is dependent on an attribute of other composite key.
Ans: 3NF
A relation is in 3 NF if an attribute of a composite key is relies on an attribute of other composite key. (If an attribute of a composite key is relies upon an attribute of other composite key then the relation is not in BCNF, therefore it has to be decomposed.)
Which file organization provides very fast access to any arbitrary record of a file? Hashed file organization provides very fast access to any arbitrary record of a file.
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A constraint named less_than_20 was defined on the field date_of_birth of table student. Delete this constraint. ALTER TABLE student DROP CONSTRAINT less_than_20;
a project based on normalization with first, second and third normalization. There need to be a diagram also
What is the need of a log in a DBMS? Briefly describe the various types of records that are normally present in a log. Ans: The system log, which is generally writt
Explain the concept of deadlock Yes. It can direct to deadlock. Suppose that a batch of frames arrived correctly and were accepted. Then receiver will advance its window. Now s
Question: In relation to distributed database answer the following questions: (i) Give a brief definition of distributed database. Support your answer with an appropriate di
Question: (a) What are the challenges in the development of Large Scale Distributed Real Systems? (b) What is backward engineering and forward engineering in a design packa
Why 'AS' clause is used in SQL ? 'As' clause is used for Rename operation. ‘AS' clause is used in SQL for rename operation. (e.g., SELECT ENO AS EMPLOYEE_NO FROM EMP)
Determine the steps of path in association network You can analyse use of paths in association network in the following steps: Examine every operation and see what asso
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