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Introduction to Database System

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

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

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Introduction to Database System
Which of the following products was the first to implement true relational algebra in a PC DBMS?

dBase-II
R:base
IDMS
Oracle

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Introduction to Database System
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.

parent
child
subtype
instance

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Introduction to Database System
In SQL, which command is used to create a database user?

CREATE USER
ADD USER TO DATABASE
All of the listed here
MK USER

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Introduction to Database System
A relation is considered a:

two-dimensional table.
one-dimensional table.
three-dimensional table.
Column.

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Introduction to Database System
If you want to organize a file in multiple ways, it is better to _____ the data rather than to sort it.

Index
None of these
Delete
Update
Sort Key

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