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Ask question #MinimRead Dennis et al. Chapter 6: Minicase 2. Work through it and answer the questions. See the attached example. SequenceDiagram.png Based on the structural mod
Draw an entity relationship diagram (ERD) for the following situation: A company has a number of employees. Each employee is identified by an Employee_Id. The company wants to st
What are three components of the schema architecture proposed by ANSI/SPARC? The three component schema architecture proposed by ANSI/SPARC is as given below: External sche
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
How persistent programming languages differ from traditional programming languages? Database languages vary from traditional programming languages in that they directly manipul
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Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
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.
What are the DBMS languages? Explain. Ans: a) Data Definition Languages (DDL): It is employed to specify database schema for example CREATE DROP statements etc. b) Dat
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