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In this video, we'll discuss what data and databases are and review some real-world applications for databases.
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Databases.
0:00
They are everywhere.
0:01
They drive the mobile applications and
the websites you use everyday.
0:03
In today's data driven world,
databases and the data inside them
0:07
power business decisions through
data analysis like never before.
0:12
Have you ever wondered how you get such
accurate shopping recommendations?
0:17
How do services, such as Netflix and Hulu,
know which show or movie to suggest next?
0:20
Through the use of databases.
0:26
To understand what data is,
0:29
let's take a brief look at a real world
object and how that relates to data.
0:31
You may have seen things like this
rotary card file on someone's desk.
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They're commonly used to
store contact information.
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Contacts are alphabetically sorted and
store important information
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about each contact, such as a person's
name, phone number, and address.
0:49
Each piece of information on
the cards can be added into the file,
0:54
accessed at a later point, updated when
someone's contact information changes and
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removed if information
is no longer needed.
1:04
Information is data.
1:08
In a way,
the rotary file is a database for
1:10
storing data,
it's just not a computerized one.
1:13
Hello.
1:18
I'm Andrew, a treehouse teacher,
database user and lifelong learner.
1:18
In this course, we'll get to understand
the fundamentals of computerized databases
1:23
and the structures inside of them.
1:28
Most importantly, we'll learn how to
retrieve information out of a database.
1:30
Let's take a look at some real world
implementations of computerized databases
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and how they're used.
1:41
Amazon uses databases to store information
or data on products they sell.
1:43
Amazon stores customer order information
with details such as shipping and
1:48
billing addresses and
customer payment information.
1:52
Customers can also save wish
list containing gift ideas for
1:56
friends and relatives.
2:00
Facebook stores information
about user's friendships,
2:03
likes, private messages, and
wall posts all in a database.
2:06
FedEx has location data for
every package they deliver.
2:12
They use tacking numbers to retrieve
the current location from a database.
2:16
All of FedEx depots and
locations are in the database too.
2:21
Sports leagues around the world,
like the Premier League in the UK,
2:26
use databases to keep track of teams,
players, matches, and other statistics.
2:30
Here, we can see what position
the team is in the league,
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how many games they've played,
how many games they've won and lost.
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All of this is stored in a database.
2:43
As you can see, without databases
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many of the services we rely on wouldn't
be able to operate as they do today.
2:48
Put simply, a database is a tool for
storing massive amounts of information
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that can be retrieved at
a later point in time.
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Software engineers have worked tirelessly
to make information storage and
3:00
retrieval as fast and
efficient as possible,
3:04
making databases the go to solution for
storing information of all types.
3:07
Whether you're a budding developer, a
marketing professional, or just beginning
3:13
your journey into data science, this
course is a great place for you to start.
3:17
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