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Cards (30)
You can store a database in your mind.
True
This course introduces the fundamental concepts necessary for designing, using, and implementing database systems and database applications
Fundamentals of Database Systems
A database management system
AOTA
These are great at keeping track of large amounts of information
computers
A special software program that helps users create and maintain a database
database management system
What language is used to interact with relational database management system?
SQL
Any collection of related information
database
CRUD stands for?
Create
Read
Update Delete
It is a type of primary key that has no mapping to anything in the real world.
Surrogate key
It is a vertical section that define a single attribute.
column
A key that has a mapping or has a purpose in the real world
Natural Key
It is just a primary key of another table. (
NOTA
This key is able to help us to define relationships between tables.
Foreign Key
It is an attribute that uniquely defines the row in the database
primary key
Who is the manager of the Corporate Branch?
An employee with an emp_id of 108
Your school Id number is a surrogate key.
False
If super_id stands for supervisor ID. Who is the supervisor of the employee whose employee ID is 103?
Michael Scott
Who is Jan Levinson's supervisor?
He has no supervisor.
Who is Michael Scott's supervisee?
Jan Levinson
Identify the circled underline.
foreign key
Identify the circled underline.
foreign key
If super_id stands for Supervisor ID. Who is the supervisee of the Supervisor with an ID of 100?
Michael Scott
and
Josh
Porter
are requests made to the database management system for specific information.
Queries
Relational Databases use _____and store data in tables with rows and columns.
SQL
Relational Databases use _____and store data in tables with rows and columns.
Relational database Non relational database
Databases can be stores in different ways
On paper
In your mind o
On a computer
o
This Powerpoint
o
Chatbox
Any collection of related information
Phone Book
o
Shopping list
o
To-do-list
o
Your
5 best friends
o
Facebook’s User Base
is basically a key that needs two attributes.–this key is made up of two columns
Composite Key
just a primary key of another table–basically an attribute that we can store on a database table that will link us to another database table.
Foreign Key
SQL is actually a hybrid language, its basically (4) types of languages in one
Data Query Language (DQL) Data Definition Language (DDL) Data Control Language (DCL) Data Manipulation Language (DML)