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Introduction to Database System

Introduction to Database System
SQL stands for ________ .

Structured Question Language
Sequential Query Language
Sequential Question Language
Structured Query Language

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Introduction to Database System
Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?

ID-dependent entity
Strong entity
Weak entity
ID-independent entity

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

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

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Introduction to Database System
The relational model uses some unfamiliar terminology. A tuple is equivalent to a

data base
field
data item
record

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Introduction to Database System
For some relations, changing the data can have undesirable consequences called:

normal forms.
modification anomalies.
referential integrity constraints.
transitive dependencies.

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Introduction to Database System
Data security threats include

all of the listed here
hardware failure
fraudulent manipulation of data
privacy invasion

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