Security considerations do not only apply to the data held in a database. Breaches of security may affect other parts of the system, which may in turn affect the database. Consequently, database security encompasses hardware, software, people, and data. To effectively implement security requires appropriate controls, which are defined in specific mission objectives for the system. This need for security, while often having been neglected or overlooked in the past, is now increasingly recognized by organizations. The reason for this turn-around is due to the increasing amounts of crucial corporate data being stored on computer and the acceptance that any loss or unavailability of this data could be potentially disastrous.
kevowmuchiri answered the question on July 4, 2018 at 16:13
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Discuss the process of testing the database system and its purpose
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July 4, 2018
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What are the main activities associated with operational maintenance stage.
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July 4, 2018
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Describe the purpose of the data conversion and loading stage.
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July 4, 2018
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Discuss the main activities associated with the implementation stage.
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July 4, 2018
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Describe the potential benefits of developing a prototype database system.
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July 4, 2018
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Discuss the two main activities associated with application design.
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July 4, 2018
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Explain why it is necessary to select the target DBMS before beginning the physical database design phase.
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July 4, 2018
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(Solved)
Discuss what a user view represents when designing a database system.
Date posted:
July 4, 2018
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Describe the purpose of creating a mission statement and mission objectives for the required database during the database planning stage.
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July 4, 2018
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Briefly describe the stages of the database system development lifecycle.
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July 4, 2018
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Discuss the relationship between the information systems lifecycle and the database system development lifecycle.
Date posted:
July 4, 2018
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Describe what is meant by the term ‘software crisis’.
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July 4, 2018
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(Solved)
What is QBE and what is the relationship between QBE and SQL?
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July 4, 2018
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July 4, 2018
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Explain how the GROUP BY clause works. What is the difference between the WHERE and HAVING clauses?
Date posted:
July 4, 2018
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What restrictions apply to the use of the aggregate functions within the SELECT statement? How do nulls affect the aggregate functions?
Date posted:
July 4, 2018
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Explain the function of each of the clauses in the SELECT statement. What restrictions are imposed on these clauses?
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(Solved)
Explain the function of each of the clauses in the SELECT statement. What restrictions are imposed on these clauses?
a)FROM
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d)HAVING
e)SELECT
Date posted:
July 4, 2018
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Answers (1)
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(Solved)
What are the two major components of SQL and what function do they serve?
Date posted:
July 4, 2018
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(Solved)
Define the two principal integrity rules for the relational model. Discuss why it is desirable to enforce these rules.
Date posted:
July 4, 2018
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Answers (1)
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(Solved)
Discuss the differences between the candidate keys and the primary key of a table. Explain what is meant by a foreign key. How do foreign keys of tables relate to candidate keys? Give examples to illustrate your answer.
Date posted:
July 4, 2018
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Answers (1)