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What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
please describe the data base management with the easy example &give the application?
Explain controlled redundancy? Controlled redundancy : The replication of data within the data warehouse for the purposes of improved data access or understand ability.
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
A field-groups statement or an insert statement reverses storage space and transfers values. False.
A database is a set of data. But, is the data kept in a database trustworthy? To answer that query we must first answer the question. What is integrity? Integrity simply means t
What are partial, alternate,, artificial, compound and natural key? Partial Key: It is a set of attributes that can uniquely recognize weak entities and that are related to s
1. A company wants a report containing a breakdown of payroll by department. Input, which should be stored in 3 parallel arrays, includes each employee's department number, hourly
In E-R Diagram how derived attribute are represented ? In E-R Diagram By Dashed ellipse derived attribute are represented.
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