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Introduction to Database System

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

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

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Introduction to Database System
A file that is organized in uniform format is formally referred to as a _____ or a database file.

Structured data file
Record
None of these
Document
Database

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Introduction to Database System
It is more accurate to define a _____ as a variety of different record types that are treated as a single unit

Record
Flat File
Database
None of these
Table

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Introduction to Database System
Which language has recently become the de-facto standard for interfacing application programs with relational database system?

dBASE
SQL
4GL
Oracle
None of these

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Introduction to Database System
A relation is in 5NF when multivalued dependencies are isolated in their own relation.

True
False

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Introduction to Database System
Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator?

Supertype entity
Instance entity
Subtype entity
Archetype entity

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