Now that we know
that we probably need a database for most websites,
and now that we also got a quick introduction
into NoSQL and SQL database systems,
it's time to dig a bit deeper.
In this course section,
we are going to dive a bit deeper into SQL database systems,
and you're going to get a more thorough introduction to SQL,
this language and a database system
that's based on that language.
Now, I will say that this is just an introduction,
you could create an entire course on just SQL,
and indeed, that is also what we did.
We do have a complete SQL course,
which I strongly recommend if you wanna dive deeper,
and if you wanna learn all about SQL and SQL databases.
But in this course section,
you're going to get started with SQL,
and you're specifically going to learn
how SQL databases are actually designed,
how you can set up your own SQL database,
and how you can work with that database,
you will learn how you can create tables and schemas
in that database
and how you can structure your data,
and of course, you're going to learn
how to perform CRUD operations,
create, read, update, delete operations,
against your database and the tables there,
and therefore, by the end of this course section,
you will have a thorough understanding
of how SQL database systems generally work
and how you can work with them.
Now, one important note though,
this course section is actually optional.
Actually, every web developer
should know some SQL basics at least,
the same as true for NoSQL,
but in this course, after these SQL sections,
so this course section and the next course section
where we will connect our SQL knowledge
with some backend code,
we actually will continue with NoSQL databases
in the other examples of this course.
So if you just wanna finish the course
and follow along with the course,
you actually don't necessarily need
to go through these SQL sections right now,
but as a web developer in general, you absolutely should.
But if you're in a hurry right now
and you just wanna go through the course
as quickly as possible,
you could skip this and the next course section.
But with that, of course,
the recommendation is to not skip it,
and instead, let's dive into SQL and explore how it works
from the next lecture on.