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bookSUMming values

There is one more function that has to be implemented - function for summing values. For example, we may want to calculate the total revenue for a certain item.

To sum values in column use SUM function followed by column which values you want to sum. For our abstract example,


              
123

            
SELECT SUM(revenue)
FROM sells
WHERE item = 'Sofa'
copy

Please note, that SUM function works only with numeric columns.

Oppgave

Swipe to start coding

From the audi_cars table calculate the total tax for all RS4 cars.

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bookSUMming values

There is one more function that has to be implemented - function for summing values. For example, we may want to calculate the total revenue for a certain item.

To sum values in column use SUM function followed by column which values you want to sum. For our abstract example,


              
123

            
SELECT SUM(revenue)
FROM sells
WHERE item = 'Sofa'
copy

Please note, that SUM function works only with numeric columns.

Oppgave

Swipe to start coding

From the audi_cars table calculate the total tax for all RS4 cars.

Løsning

Switch to desktopBytt til skrivebordet for virkelighetspraksisFortsett der du er med et av alternativene nedenfor
Alt var klart?

Hvordan kan vi forbedre det?

Takk for tilbakemeldingene dine!

Seksjon 3. Kapittel 2
single

single

close

Awesome!

Completion rate improved to 2.63

bookSUMming values

Sveip for å vise menyen

There is one more function that has to be implemented - function for summing values. For example, we may want to calculate the total revenue for a certain item.

To sum values in column use SUM function followed by column which values you want to sum. For our abstract example,


              
123

            
SELECT SUM(revenue)
FROM sells
WHERE item = 'Sofa'
copy

Please note, that SUM function works only with numeric columns.

Oppgave

Swipe to start coding

From the audi_cars table calculate the total tax for all RS4 cars.

Løsning

Switch to desktopBytt til skrivebordet for virkelighetspraksisFortsett der du er med et av alternativene nedenfor
Alt var klart?

Hvordan kan vi forbedre det?

Takk for tilbakemeldingene dine!

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