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Define the Attribute Inheritance
The attributes of a higher level entity set are inherited through a lower level entity set made by specialization-generalization hierarchy. Namely, all the attributes of the higher level entity set are as well the attributes of the lower level entity set.
Which component is not included in database environment ? A users component is not included in database environment.
State about the Tables- DBMS Data is stored in columns and rows (much like a spreadsheet -main difference is how data is organised). Every row in a table is known as a record
Hierarchical
Describe entity referential integrity and integrity. Give an example of each. Entity Integrity Rule - If there is a attribute A of relation R is a prime attribute of R then A
(a) Design a query plan for the following distributed query: An application at site B wants to compute a join of STUDENT ? Id=StudId TRANSCRIPT where STUDENT (Id,Major) is at site
what is RDBMS? how it works? good example.
Explain differance between Primary and secondary storage ? Primary and secondary storage Computer storage is classified within primary(main) memory and secondary(per
What is advantage of two-way association? Two-way association advantages are following: a) Independent of the classes. b) Useful for existing predefined classes that are
Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
Write the C++ program having class name studentinfo, that is used to store the VU student information: This class should store your VUID, campus id, name and father name in the fol
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