How many copies of the database schema are typically used in the redesign process?
Answer: C
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Before any changes to database structure are attempted one should first:
Answer: D
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What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?
Answer: C
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Which SQL-92 standard SQL command can be used to change a table name?
Answer: D
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The data model produced from the reverse engineering process does not include intersection table data.
Answer: B
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Because of the importance of making data model changes correctly, many professionals are ________ about using an automated process for database redesign.
Answer: B
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The EXISTS keyword will be true if any row in the subquery meets the condition.
Answer: A
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The use of the double NOT EXISTS can be used to find rows that do not match some specified condition.
Answer: A
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Dependency graphs are diagrams that consist of nodes and arcs that show the dependencies of a database.
Answer: A
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A correlated subquery is processed as a nested subquery.
Answer: A
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