This stage is required only when a new database system is replacing an old system. Nowadays, it’s common for a DBMS to have a utility that loads existing files into the new database. The utility usually requires the specification of the source file and the target database, and then automatically converts the data to the required format of the new database files. Where applicable, it may be possible for the developer to convert and use application programs from the old system for use by the new system.
kevowmuchiri answered the question on July 4, 2018 at 16:08
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Discuss the main activities associated with the implementation stage.
(Solved)
Discuss the main activities associated with the implementation stage.
Date posted:
July 4, 2018
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Answers (1)
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Describe the potential benefits of developing a prototype database system.
(Solved)
Describe the potential benefits of developing a prototype database system.
Date posted:
July 4, 2018
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Discuss the two main activities associated with application design.
(Solved)
Discuss the two main activities associated with application design.
Date posted:
July 4, 2018
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Answers (1)
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Explain why it is necessary to select the target DBMS before beginning the physical database design phase.
(Solved)
Explain why it is necessary to select the target DBMS before beginning the physical database design phase.
Date posted:
July 4, 2018
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Answers (1)
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Discuss what a user view represents when designing a database system.
(Solved)
Discuss what a user view represents when designing a database system.
Date posted:
July 4, 2018
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Answers (1)
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Describe the purpose of creating a mission statement and mission objectives for the required database during the database planning stage.
(Solved)
Describe the purpose of creating a mission statement and mission objectives for the required database during the database planning stage.
Date posted:
July 4, 2018
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Answers (1)
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Briefly describe the stages of the database system development lifecycle.
(Solved)
Briefly describe the stages of the database system development lifecycle.
Date posted:
July 4, 2018
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Answers (1)
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Discuss the relationship between the information systems lifecycle and the database system development lifecycle.
(Solved)
Discuss the relationship between the information systems lifecycle and the database system development lifecycle.
Date posted:
July 4, 2018
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Answers (1)
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Describe what is meant by the term ‘software crisis’.
(Solved)
Describe what is meant by the term ‘software crisis’.
Date posted:
July 4, 2018
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Answers (1)
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What is QBE and what is the relationship between QBE and SQL?
(Solved)
What is QBE and what is the relationship between QBE and SQL?
Date posted:
July 4, 2018
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Answers (1)
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What is the difference between a sub query and a join? Under what circumstances would you not be able to use a sub query?
(Solved)
What is the difference between a sub query and a join? Under what circumstances would you not be able to use a sub query?
Date posted:
July 4, 2018
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Answers (1)
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Explain how the GROUP BY clause works. What is the difference between the WHERE and HAVING clauses?
(Solved)
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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Answers (1)
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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?
(Solved)
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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Answers (1)
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Explain the function of each of the clauses in the SELECT statement. What restrictions are imposed on these clauses?
a)FROM
b) WHERE
c)GROUP BY
d)HAVING
e)SELECT
(Solved)
Explain the function of each of the clauses in the SELECT statement. What restrictions are imposed on these clauses?
a)FROM
b) WHERE
c)GROUP BY
d)HAVING
e)SELECT
Date posted:
July 4, 2018
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Answers (1)
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What are the two major components of SQL and what function do they serve?
(Solved)
What are the two major components of SQL and what function do they serve?
Date posted:
July 4, 2018
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Answers (1)
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Define the two principal integrity rules for the relational model. Discuss why it is desirable to enforce these rules.
(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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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...
(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)
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Discuss the properties of a relational table.
(Solved)
Discuss the properties of a relational table.
Date posted:
July 4, 2018
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Discuss the advantages and disadvantages of DBMSs.
(Solved)
Discuss the advantages and disadvantages of DBMSs.
Date posted:
July 4, 2018
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Answers (1)
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Describe the functions that should be provided by a modern full-scale multi-user DBMS.
(Solved)
Describe the functions that should be provided by a modern full-scale multi-user DBMS.
Date posted:
July 4, 2018
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Answers (1)