Зміст курсу

SQL Tutorial for Beginners

1. Database & Introduction to Syntax

Meet the SQL Select the Songs!SQL Select Column SQL Distinct SQL Where Challenge Where SQL And, Or, Not

2. SQL Aggregate Functions

SQL Min and Max Challenge Min and Max SQL Count, Sum, Avg Challenge Count

3. Filtering Statements

SQL Null SQL Like Challenge Like SQL Between SQL Order By Challenge Order By SQL Group By Challenge Group By SQL Top and Limit SQL Aliases SQL Having Challenge Having SQL Comments

Meet the SQL

SQL is a Structured Query Language created for accessing and manipulating data stored in databases. There are different versions of SQL and databases management systems that use SQL such as Microsoft SQL Server, PostgreSQL, MySQL, Oracle, etc.

There may be some specific knowledge needed for each DBMS, but at all, they use SQL with similar syntax. Using SQL, you can:

Create, change, delete and manipulate the tables
Create, change, delete and manipulate the data
Access and retrieve the data (records)
Create stored procedures in the database
Set permissions for procedures and tables

There is even an extension of SQL that lets you use it as a standard programming language: create variables, loops, if-else statements, and so on.

So let's submit the very first SQL query which shows all the data in the table songs.

Завдання

Let's practice a bit. Write the next code:

Then submit your first SQL query! Read about the SQL SELECT statement in the next chapter.

Завдання

Let's practice a bit. Write the next code:

Then submit your first SQL query! Read about the SQL SELECT statement in the next chapter.

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Секція 1. Розділ 1

Meet the SQL

There may be some specific knowledge needed for each DBMS, but at all, they use SQL with similar syntax. Using SQL, you can:

Create, change, delete and manipulate the tables
Create, change, delete and manipulate the data
Access and retrieve the data (records)
Create stored procedures in the database
Set permissions for procedures and tables

There is even an extension of SQL that lets you use it as a standard programming language: create variables, loops, if-else statements, and so on.

So let's submit the very first SQL query which shows all the data in the table songs.

Завдання

Let's practice a bit. Write the next code:

Then submit your first SQL query! Read about the SQL SELECT statement in the next chapter.

Завдання

Let's practice a bit. Write the next code:

Then submit your first SQL query! Read about the SQL SELECT statement in the next chapter.

Все було зрозуміло?

Секція 1. Розділ 1

Meet the SQL

There may be some specific knowledge needed for each DBMS, but at all, they use SQL with similar syntax. Using SQL, you can:

Create, change, delete and manipulate the tables
Create, change, delete and manipulate the data
Access and retrieve the data (records)
Create stored procedures in the database
Set permissions for procedures and tables

There is even an extension of SQL that lets you use it as a standard programming language: create variables, loops, if-else statements, and so on.

So let's submit the very first SQL query which shows all the data in the table songs.

Завдання

Let's practice a bit. Write the next code:

Then submit your first SQL query! Read about the SQL SELECT statement in the next chapter.

Завдання

Let's practice a bit. Write the next code:

Then submit your first SQL query! Read about the SQL SELECT statement in the next chapter.

Все було зрозуміло?

There may be some specific knowledge needed for each DBMS, but at all, they use SQL with similar syntax. Using SQL, you can:

Create, change, delete and manipulate the tables
Create, change, delete and manipulate the data
Access and retrieve the data (records)
Create stored procedures in the database
Set permissions for procedures and tables

There is even an extension of SQL that lets you use it as a standard programming language: create variables, loops, if-else statements, and so on.

So let's submit the very first SQL query which shows all the data in the table songs.

Завдання

Let's practice a bit. Write the next code:

Then submit your first SQL query! Read about the SQL SELECT statement in the next chapter.

Секція 1. Розділ 1