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Explain the disadvantages of file oriented approach?
In the oriented approach Applications are designed in isolation. Design of application is optimized for one application. Independently established applications lead to data redundancy. Wasted storage space because of redundancy.
a. There is loss of data integrity since integrity checking is not automated.b. Difficulty in accessing data.c. Information is available only in reports.d. Data Isolation.e. Inadequate securityf. Limited Flexibilityg. High Maintenance cost.h. Each data file of an application is a separate entity.
1. Identify the comparisons and exchanges made to sort the following array using the selection exchange sort technique. Note: you may not need all columns. Ori
A Structure of a dependency diagram
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In an organisation various projects are undertaken. Each projects can employ one or more employees. Every employee can work on one or more projects. Each project is undertaken on
Describes the several relationship constraints through giving suitable example? Constraints on relationships: There are two kinds of constraints on relationships. 1) Mapping
The Maximum no of key fields that can be used in a header is?? 50
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Improved performance: As the data is located near the site of its demand, and given the inherent parallelism because of multiple copies, speed of database access may be good for di
Define Aggregate functions and what aggregate functions supported by the MySQL To calculate a summary value from a set of individual values and uses one of the functions known
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