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Introduction to Database System

Introduction to Database System
A candidate key is a determinant that determines all the other columns is a relation.

True
False

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Introduction to Database System
In SQL, which command(s) is(are) used to redefine an index's future storage allocation

REDEFINE INDEX
None of these
MODIFY INDEX
ALTER INDEX
DO INDEX

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Introduction to Database System
Updating a database means

reorganizing the database
revising the file structure
all of the listed here
modifying or adding record occurrences

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Introduction to Database System
In SQL, the ALTER TABLESPACE command is used

All of the listed here
to add/rename data files
to take a tablespace online/offline
to change storage characteristics

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Introduction to Database System
A recursive relationship is a relationship between an archetype and an instance of that archetype.

True
False

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Introduction to Database System
One solution to the multivalued dependency constraint problem is to:

change the theme.
create a new theme.
split the relation into two relations, each with a single theme.
add a composite key.

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