SQL Tutorial for Beginners

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SQL Tutorial for Beginners

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

SQL Between

If you need to choose records with the value in some range, you can use BETWEEN command:


              12
            
SELECT id FROM songs
WHERE year BETWEEN 1970 AND 1990

The result of this query is equal to:


              12
            
SELECT id FROM songs
WHERE year >= 1970 AND year <= 1990

Note that it includes boundary values. You can use BETWEEN with NOT operator: С NOT BETWEEN A AND B, which is equal to С<A OR С>B.

SQL BETWEEN for strings

If you apply BETWEEN to string values, you'll get all records from the table between these fields. Test the next example


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SELECT title FROM songs
WHERE album BETWEEN 'Highway to Hell' AND 'If You Can Believe Your Eyes and Ears'

Завдання

Swipe to start coding

Find minimum, maximum, and average prices of the songs created in the last decade of the 20th century. Use BETWEEN operator.

Рішення

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

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 3. Розділ 4

toggle bottom row

SQL Between

If you need to choose records with the value in some range, you can use BETWEEN command:


              12
            
SELECT id FROM songs
WHERE year BETWEEN 1970 AND 1990

The result of this query is equal to:


              12
            
SELECT id FROM songs
WHERE year >= 1970 AND year <= 1990

Note that it includes boundary values. You can use BETWEEN with NOT operator: С NOT BETWEEN A AND B, which is equal to С<A OR С>B.

SQL BETWEEN for strings

If you apply BETWEEN to string values, you'll get all records from the table between these fields. Test the next example


              12
            
SELECT title FROM songs
WHERE album BETWEEN 'Highway to Hell' AND 'If You Can Believe Your Eyes and Ears'

Завдання

Swipe to start coding

Find minimum, maximum, and average prices of the songs created in the last decade of the 20th century. Use BETWEEN operator.

Рішення

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

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 3. Розділ 4

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

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