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Introduction to Database System

Introduction to Database System
The highest level in the hierarchy of data organization is called

database
data bank
data record
data file

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Introduction to Database System
What is the abbreviation used for a software package that permits the users to create, retrieve and maintain records in a database?

DBMS
EMMS
FMS
DASD
None of these

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Introduction to Database System
A database has data and relationships.

False
True

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Introduction to Database System
Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape.

False
True

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Introduction to Database System
Which command(s) is(are) used to redefine a column of the table in SQL ?

ALTER TABLE
all of the listed here
DEFINE TABLE
MODIFY TABLE

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Introduction to Database System
Each of data files has a _____ that describe the way the data is stored in the file.

File structure
Database
Records
Fields

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