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Introduction to Database System

Introduction to Database System
The index consists of

pointers to the master list
a list of keys
None of these
both (a) and (b)
All of these

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Introduction to Database System
An application where only one user accesses the database at a given time is an example of a(n) ________ .

multiuser database application
data mining database application
single-user database application
e-commerce database application

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Introduction to Database System
Which language has recently become the de-facto standard for interfacing application programs with relational database system?

dBASE
Oracle
SQL
None of these
4GL

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Introduction to Database System
An indexing operation

sorts file using two keys
None of the listed here
establishes an index for a file
sorts a file using a single key

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Introduction to Database System
In a relation, the columns are sometimes called "attributes".

False
True

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Introduction to Database System
When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):

transitive dependency.
normal form.
referential integrity constraint.
insertion anomaly.

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