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SQL Tutorial for Beginners
SQL Tutorial for Beginners
SQL Min and Max
Aggregate Functions
There are functions in SQL that returns single line result among a group of the rows. These functions are called aggregate functions.
MIN() and MAX() functions return the minimum and maximum result from the query, and this is always a single line.
Let's find the release date of the oldest song in our table:
SELECT MIN(year) FROM songs
Now, let's select the price of the most expensive song of 21st century:
SELECT MAX(price) FROM songs WHERE year > 2000
Swipe to start coding
Find the price of the most expensive song.
Løsning
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående mulighederTak for dine kommentarer!
SQL Min and Max
Aggregate Functions
There are functions in SQL that returns single line result among a group of the rows. These functions are called aggregate functions.
MIN() and MAX() functions return the minimum and maximum result from the query, and this is always a single line.
Let's find the release date of the oldest song in our table:
SELECT MIN(year) FROM songs
Now, let's select the price of the most expensive song of 21st century:
SELECT MAX(price) FROM songs WHERE year > 2000
Swipe to start coding
Find the price of the most expensive song.
Løsning
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående mulighederTak for dine kommentarer!
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder