Name: クラウドコンピューティング - データベースの紹介 (Cloud Computing - Database Introduction)
Uploaded: 2021-01-14T10:12:29.000Z
Duration: 49 min 16 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

動名詞

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I'm going to do an introduction to databases in regards to cloud computing.

Now I do have to warn you, and you have to warn you, if you are an expert in databases, turn back now turn back.

The way that I'm going to probably do this introduction today is most likely going to piss off a lot of old school database administrators, because the problem that I have is when I am talking to people, I am talking to new people.

And so I have to find someplace to start in order to give folks context for everything else that I talk about later.

And so one of the issues you run into when you're doing introductory classes is you frustrate a lot of the old timers because they're like that's That's not Howard is a lorry, and you're like, Well, yeah, you know, in the real world, it gets a lot more complex.

And, ah, there's a lot of stuff in the real world, but I have to find some place to start from.

And so I am going to be started by talking about relational databases.

I think this is a good place to start when we start talking about databases, especially in the cloud computing world, because we're like relation.

All databases are most likely the types of databases that you will have run into in your normal day to day work and the type of databases that are most likely easiest for you to spend up.

There are different types of databases out there.

They focus on being able to deal with data in different ways.

Basically, relational databases is just one way that's been around for quite a long time now.

And if you're going to be dealing with databases such as my sequel databases or Maria de be a lot of the different types of databases out there, basically they're going to be a relational databases.

So if you are a database expert, let me be clear.

It's an introductory class, got may cut me a break here, right?

So when we start talking about databases, the important thing to be realizing when you're talking about databases is all a database does, or all database software or a service does.

Is it stores data in a way that is very easy, basically to search for and to be able to modify.

So that's all Oh, a database server does.

So this is very important because a lot of times when people start interacting with databases for the first time don't use a piece of software such as access.

So access is a piece of data base software that Microsoft creates and the way the Microsoft does everything, which is good from a production standpoint.

But it's horrible from an education standpoint.

Everything together s so what you're doing with access databases.

Basically, access has the database component, and it has the front and component, and it has the intelligence.

Basically, when you deal with access, you're dealing with a full product, right?

So one of the problems is when people go out to start using, let's say that's equal or my sequel or Maria D.

B, or some of the other database software.

They get really confused because they're like, Okay, I installed the database software.

And it's like, No, no, all the database does.

All a database does, is it stores the data.

You then have to use some other front end, and you have to code the intelligence or have the intelligence coded for you to make that database actually do something worthwhile.

So when you're dealing with a database, most likely again, if you're gonna be using relation all databases, my sequel, mess sequel, something like that, In order to interact with the database, you will be using something called Sequel or structured query language.

And basically what that structure query language allows you to dio is it allows you to do things like create databases, create tables, create records, search for database search through databases.

It allows you to modifications a whole bunch of things.

It's kind of like again will be kind of like trying to surf through the world wide Web at the command line.

There are tools and other scum called lynx that allows you to actually navigate the World Wide Web from the command line.

But nobody other than really hardcore Lennox administrators would actually ever even think about doing something like that.

And so that's one thing to realize with the databases, get my sequel or whatever Maria de be.

Whatever database they're gonna use is is you have the database software.

You're able to interact with the database software using something called structure, query language or whatever language that they use.

But that's that is horrible and nasty and God awful.

And it's not actually how any normal person is going be interacting with the database.

How people actually you're going to be interacting with the database is there's gonna be some front end that has been developed.

So basically, the front end is either a like a website that you go to or some kind of application has been created for your windows or your iPhone or whatever else.

Then there will be intelligent, so basically you have the front end, and then you code you code for that front end to be able to communicate with your data base eso such as, like if you're dealing with something like a WordPress or dribble.

Basically, you have a front end of that front end is 80 Mel and CSS and that type of thing you have a my sequel back end, and then you use PHP.

So basically, when you insert data So when you create a user account or when you create a post or something like that, basically PHP takes that information and then with PHP, that information is then input it into the database.

When you go to read a post off of something like WordPress and you click the link, what happens there is PHP goes, finds the records associated with that post it, then pulls that out of the database depending on the formatting than four mats.

So one of the important things to remember when you're dealing with databases is all the databases does, is it just stores the data.

Basically, it stores those records so that you can access them.

How you actually access them, though, is generally through some external application.

And then there's some programming language that that communicates from that application back to the database.

It's kind of think about like a file server, maggot.

If you have a file server and you had a whole bunch of documents, you know, Excel, spreadsheets and documents and PDF files or whatever else in that file server.

You know the final server, but you don't have word, and you don't have excel or anything that can open up a spreadsheet.

You don't have any of that kind of soft right?

It doesn't have word or open office or anything installed.

That data is there, but in order to be able to actually access that dad, do anything useful for it.

You need an application installed on your computer that is able to read that data type, and then you're able to communicate with it over the network, and then you're able to open it and modify it.

Kind of think about that, like with databases.

So basically, you have his database software installed on your server.

But to really do anything useful with that at a base, you need some kind of external application that's been created.

That external application will then be communicating with the database to push poll, do whatever intelligence that data database requires.

So that kind of gives you a little bit of a brief idea what we're talking about with the databases just to kind of get you, get you in the right mindset here.

So now that you have a brief idea of what a databases, let's go over the white board so I can draw some things out to try to give you a visual representation of what's going on.

So I think it'll make a little bit more sense for you.

Let's do a little bit of a diagram of how this whole database system works and how clients are going to be interacting with it Now.

The important thing to be thinking about when I start talking about you know the database is that the modern world of databases has become much more complicated than how it used to be.

So I am trying to give you a basis here so that when you start reading and learning more about database is going into the future.

You have a base idea of what's supposed to be going on, and then you can understand what functions or features the product that you're looking at offers.

So, basically, in the old days, in the old days we had a server.

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クラウドコンピューティング - データベースの紹介 (Cloud Computing - Database Introduction)

access

multiple

basically

realize