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The Third Normal Form (3NF) Even though, transforming a relation that is not in 2NF into a number of relations that are in 2NF take out many of the anomalies, it does not neces
crete a data base relationship model Entity: Students; Professors; Dormitories buildings; Attributes of students: Name; Address; Dorm;
What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
differences between a classified catalog and a dictionary catalog
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#explain five disadvantages of a dbms..
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
Compare the two log-based recovery schemes in terms of ease of implementation and overhead cost. Ans: There are two types of log based recovery techniques: deferred update
Define raid? Briefly explain it? A range of disk organization methods, collectively called redundant arrays of independent disks (RAID) o Improvement of reliability throug
In a Hierarchical model of data records are organized ? In the hierarchical model of data records are organized as Tree structure.
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