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There are many simple and complex approaches to implement. These reports are based on some views or certain query.
The following number of reports can be built.
1. The average of the customers reported.
2. The average of materials.
3. The employee average in all materials utilized.
4. The percentage of materials ordered according to services rendered.
5. The number of operators on duty in a year's time.
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
What is the use of Union and intersection operation? Union: The result of this operation contains all tuples that are either in r1 or in r2 or in both r1 and r2.Duplicate tuple
what is un ordered and ordered file managment?
Give the limitations of SQL authorization. The code for checking authorization becomes intermixed with the rest of the application code. Implementing authorization by applic
Competition entrants can be either Individuals, or Teams. A Team is usually sponsored by a business, and, in that case, the team members would all wear T-shirts with the sponsoring
What is called block-level striping? Block level striping stripes blocks across many disks. It treats the array of disks as a large disk, and provides blocks logical numbers
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
Explain how the object classes are mapped to tables. Each object class maps to one or more than one tables in the database. The objects in the class may be partitioned horizont
Object-based Models: Use objects as key data representation components . Examples:- Entity-Relationship Model: It is a collection of real world objects known as entitie
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
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