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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

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

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Introduction to Database System
In SQL, which command is used to remove a stored function from the database?

REMOVE FUNCTION
None of these
DELETE FUNCTION
DROP FUNCTION
ERASE FUNCTION

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Introduction to Database System
In order to use a record management system

Both (a) and (b)
You need to understand the low-level details of how information in stored
You need to understand the model the record management system uses.
None of these
All of these

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Introduction to Database System
A network schema

restricts the structure to a one-to-many relationship
stores data in tables
All of the listed here
permits many-to-many relation¬ships

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Introduction to Database System
Given the functional dependency R → (S,T) , then it is also true that R → S.

True
False

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Introduction to Database System
A number of related records that are treated as a unit is called

file
batch
field
data

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