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Introduction to Database System

Introduction to Database System
An operation that will increase the length of a list is

Look-up
Insert
Modify
All of the listed here

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Introduction to Database System
Helping people keep track of things is the purpose of a(n) ________ .

table
relationship
database
instance

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Introduction to Database System
Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier?

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

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Introduction to Database System
A data dictionary is a special file that contains

the names of all fields in all files
None of these
the data types of all fields in all files
All of these
the widths of all fields in all files

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Introduction to Database System
In SQL, the _____ command is used to recompile a view

DEFINE VIEW
CREATE VIEW
None of these
COMPILE VIEW
ALTER VIEW

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Introduction to Database System
In an Enterprise-class database system, business users interact directly with database applications that interact with the DBMS, which directly accesses the database data.

False
True

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