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Objectives After reading this unit you should be able to: Explain storage of databases on hard disks; Discuss the execution of various file Organisation techniques;
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
Differentiate between a unique key and a primary key. - By default, clustered index on column are created by primary key while nonclustered index are created by unique key.
. Ashutosh Dubey who is the director of Gyan Gurukul want a three-level schema architecture for the Gyan Gurukul Company that provide better security also design a data abstraction
ERD Diagram of Medical Recruitment Agency?
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
Complete replication: It implies maintaining of a whole copy of the database at every site. Thus, the reliability & availability and performance for query response are maximized.
What are the requirements to ensure the objectives of file management principle is realized?
#question.what is mapping constraints and types?.
Question (a) Visual Basic is governed by an event processor. Explain the meaning of this phrase. (b) Differentiate between an general procedure and event procedure. (c)
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