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Consider the following relational database: STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, course#, sem
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
why older data models are being replaced by new data models.
Before defines the second type of integrity constraint, viz., Entity Integrity, we should be well-known with the concept of NULL. Mostly, NULL is intended as a basis for dealing
What is an object design? Object design is a very interactive method, which decides the relationship among objects, classifies operations on classes, determines overall system
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the delet
what is check point in database management system
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
What are the responsibility of File manager? File Manager : Manager allocation of space on disk storage and the data structures used to represent within stored on disk. It is a
Define raid? Briefly explain it? A range of disk organization methods, collectively called redundant arrays of independent disks (RAID) o Improvement of reliability throug
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