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Introduction to Database System

Introduction to Database System
In SQL, which of the following is not a data Manipulation Language Commands?

CREATE
DELETE
SELECT
UPDATE

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Introduction to Database System
A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As

None of these
tuple
relations
tables
both (a) and (b)

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Introduction to Database System
A key:

identifies a column.
identifies a row.
can only be one column.
must always be composed of two or more columns.

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Introduction to Database System
A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields.

None of these
Network
Hierarchical
Object-Oriented
Relational

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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
Which of the following is not considered to be a basic element of an enterprise-class database system?

Database applications
Users
DBMS
COBOL programs

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