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

Cursusinhoud

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:

Taak

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.

Oplossing

Switch to desktopSchakel over naar desktop voor praktijkervaringGa verder vanaf waar je bent met een van de onderstaande opties
Was alles duidelijk?

Hoe kunnen we het verbeteren?

Bedankt voor je feedback!

Sectie 2. Hoofdstuk 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:

Taak

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.

Oplossing

Switch to desktopSchakel over naar desktop voor praktijkervaringGa verder vanaf waar je bent met een van de onderstaande opties
Was alles duidelijk?

Hoe kunnen we het verbeteren?

Bedankt voor je feedback!

Sectie 2. Hoofdstuk 3
Switch to desktopSchakel over naar desktop voor praktijkervaringGa verder vanaf waar je bent met een van de onderstaande opties
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