Kursusindhold
SQL Basics
SQL Basics
HAVING some conditions
What if we want to filter grouped observations based on some condition? For example, we want to extract only those models available with Hybrid fuel types.
You can do it by grouping firstly by model, and then by fuel type filtered by condition on fueltype.
SELECT model FROM audi_cars GROUP BY model, fueltype HAVING fueltype = 'Hybrid'
Please note, that you can use all the operators learned in the second section within
HAVINGstatement.
Swipe to start coding
From the audi_cars table extract all the models available with Automatic transmission.
Løsning
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående mulighederTak for dine kommentarer!
HAVING some conditions
What if we want to filter grouped observations based on some condition? For example, we want to extract only those models available with Hybrid fuel types.
You can do it by grouping firstly by model, and then by fuel type filtered by condition on fueltype.
SELECT model FROM audi_cars GROUP BY model, fueltype HAVING fueltype = 'Hybrid'
Please note, that you can use all the operators learned in the second section within
HAVINGstatement.
Swipe to start coding
From the audi_cars table extract all the models available with Automatic transmission.
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