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Oppiskele Sorting by Multiple Columns | Sorting Retrieved Data
Introduction to SQL
course content

Kurssisisältö

Introduction to SQL

Introduction to SQL

1. Retrieving Data
2. Sorting Retrieved Data
3. Filtering Data
4. Advanced Data Filtering
5. Aggregate Functions

book
Sorting by Multiple Columns

We can also sort by multiple columns. We need to specify the column names separated by commas.

The first column specified in the sorting will have priority, and then the sorting will proceed according to the second column.

The syntax will look like this:

sql

Let’s look at the example that retrieves three columns and sorts the results by two of them: first by population and then by capital:

123
SELECT ID, population, capital FROM country ORDER BY population, capital;
copy

Here is the country table we are working with:

Tehtävä

Swipe to start coding

Write an SQL query to retrieve four columns using the SELECT statement, namely: continent, region, population, and capital (please retrieve these columns in this order). Then, sort the result by two of them: first by continent, then by population.

Ratkaisu

Switch to desktopVaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoista
Oliko kaikki selvää?

Miten voimme parantaa sitä?

Kiitos palautteestasi!

Osio 2. Luku 3
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book
Sorting by Multiple Columns

We can also sort by multiple columns. We need to specify the column names separated by commas.

The first column specified in the sorting will have priority, and then the sorting will proceed according to the second column.

The syntax will look like this:

sql

Let’s look at the example that retrieves three columns and sorts the results by two of them: first by population and then by capital:

123
SELECT ID, population, capital FROM country ORDER BY population, capital;
copy

Here is the country table we are working with:

Tehtävä

Swipe to start coding

Write an SQL query to retrieve four columns using the SELECT statement, namely: continent, region, population, and capital (please retrieve these columns in this order). Then, sort the result by two of them: first by continent, then by population.

Ratkaisu

Switch to desktopVaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoista
Oliko kaikki selvää?

Miten voimme parantaa sitä?

Kiitos palautteestasi!

Osio 2. Luku 3
Switch to desktopVaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoista
Pahoittelemme, että jotain meni pieleen. Mitä tapahtui?
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