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SQL Basics
SQL Basics
MINimal and MAXimal values
Now it's time to talk about aggregate functions - functions that calculate some summary stats. Let's start with extremal summary stats - minimum and maximum values.
To find the minimum (or maximum) value in the column use MIN (or MAX) functions followed by column name. For example, we can find out the cheapest car with Automatic transmission.
SELECT MIN(price) FROM audi_cars WHERE transmission = 'Automatic'
Please note, that unlike for
DISTINCTfunction you need to use parentheses forMINandMAXfunctions.
Swipe to start coding
From the audi_cars table find out the price of the most expensive Diesel car (fueltype column).
Soluzione
Cambia al desktop per esercitarti nel mondo realeContinua da dove ti trovi utilizzando una delle opzioni seguentiGrazie per i tuoi commenti!
MINimal and MAXimal values
Now it's time to talk about aggregate functions - functions that calculate some summary stats. Let's start with extremal summary stats - minimum and maximum values.
To find the minimum (or maximum) value in the column use MIN (or MAX) functions followed by column name. For example, we can find out the cheapest car with Automatic transmission.
SELECT MIN(price) FROM audi_cars WHERE transmission = 'Automatic'
Please note, that unlike for
DISTINCTfunction you need to use parentheses forMINandMAXfunctions.
Swipe to start coding
From the audi_cars table find out the price of the most expensive Diesel car (fueltype column).
Soluzione
Cambia al desktop per esercitarti nel mondo realeContinua da dove ti trovi utilizzando una delle opzioni seguentiGrazie per i tuoi commenti!
Cambia al desktop per esercitarti nel mondo realeContinua da dove ti trovi utilizzando una delle opzioni seguenti