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Checking for a Range of Values | Filtering Data
Introduction to SQL
course content

Course Content

Introduction to SQL

Introduction to SQL

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

Checking for a Range of Values

To check for a range of values, we should use the BETWEEN operator. This operator requires two values: the start-value and the end-value of the range. Also, the AND keyword should be placed between these values.

Let's see an example:

123
SELECT name, population FROM country WHERE population BETWEEN 100000 AND 3000000;

Task

Write an SQL query that returns the name, capital, and population columns from the country table (please retrieve these columns in this order), for all countries with a population between 6000000 and 80000000. Then sort the result by capital from A to Z. You have to do it like in the example above.

Pay attention to the population, and enter these numbers correctly. Otherwise, you will get an Internal server error.

Here's a short example of the country table:

idnamecontinentregionsurfaceareacapitalpopulation
1JapanAsiaEastern Asia377829Tokyo126714000
2LatviaEuropeNULL64589Riga2424200
3MexicoNorth AmericaCentral America1958201Mexico City98881000
.....................
15MaltaEuropeSouthern Europe316Valletta380200

Task

Write an SQL query that returns the name, capital, and population columns from the country table (please retrieve these columns in this order), for all countries with a population between 6000000 and 80000000. Then sort the result by capital from A to Z. You have to do it like in the example above.

Pay attention to the population, and enter these numbers correctly. Otherwise, you will get an Internal server error.

Here's a short example of the country table:

idnamecontinentregionsurfaceareacapitalpopulation
1JapanAsiaEastern Asia377829Tokyo126714000
2LatviaEuropeNULL64589Riga2424200
3MexicoNorth AmericaCentral America1958201Mexico City98881000
.....................
15MaltaEuropeSouthern Europe316Valletta380200

Everything was clear?

Section 3. Chapter 5
toggle bottom row

Checking for a Range of Values

To check for a range of values, we should use the BETWEEN operator. This operator requires two values: the start-value and the end-value of the range. Also, the AND keyword should be placed between these values.

Let's see an example:

123
SELECT name, population FROM country WHERE population BETWEEN 100000 AND 3000000;

Task

Write an SQL query that returns the name, capital, and population columns from the country table (please retrieve these columns in this order), for all countries with a population between 6000000 and 80000000. Then sort the result by capital from A to Z. You have to do it like in the example above.

Pay attention to the population, and enter these numbers correctly. Otherwise, you will get an Internal server error.

Here's a short example of the country table:

idnamecontinentregionsurfaceareacapitalpopulation
1JapanAsiaEastern Asia377829Tokyo126714000
2LatviaEuropeNULL64589Riga2424200
3MexicoNorth AmericaCentral America1958201Mexico City98881000
.....................
15MaltaEuropeSouthern Europe316Valletta380200

Task

Write an SQL query that returns the name, capital, and population columns from the country table (please retrieve these columns in this order), for all countries with a population between 6000000 and 80000000. Then sort the result by capital from A to Z. You have to do it like in the example above.

Pay attention to the population, and enter these numbers correctly. Otherwise, you will get an Internal server error.

Here's a short example of the country table:

idnamecontinentregionsurfaceareacapitalpopulation
1JapanAsiaEastern Asia377829Tokyo126714000
2LatviaEuropeNULL64589Riga2424200
3MexicoNorth AmericaCentral America1958201Mexico City98881000
.....................
15MaltaEuropeSouthern Europe316Valletta380200

Everything was clear?

Section 3. Chapter 5
toggle bottom row

Checking for a Range of Values

To check for a range of values, we should use the BETWEEN operator. This operator requires two values: the start-value and the end-value of the range. Also, the AND keyword should be placed between these values.

Let's see an example:

123
SELECT name, population FROM country WHERE population BETWEEN 100000 AND 3000000;

Task

Write an SQL query that returns the name, capital, and population columns from the country table (please retrieve these columns in this order), for all countries with a population between 6000000 and 80000000. Then sort the result by capital from A to Z. You have to do it like in the example above.

Pay attention to the population, and enter these numbers correctly. Otherwise, you will get an Internal server error.

Here's a short example of the country table:

idnamecontinentregionsurfaceareacapitalpopulation
1JapanAsiaEastern Asia377829Tokyo126714000
2LatviaEuropeNULL64589Riga2424200
3MexicoNorth AmericaCentral America1958201Mexico City98881000
.....................
15MaltaEuropeSouthern Europe316Valletta380200

Task

Write an SQL query that returns the name, capital, and population columns from the country table (please retrieve these columns in this order), for all countries with a population between 6000000 and 80000000. Then sort the result by capital from A to Z. You have to do it like in the example above.

Pay attention to the population, and enter these numbers correctly. Otherwise, you will get an Internal server error.

Here's a short example of the country table:

idnamecontinentregionsurfaceareacapitalpopulation
1JapanAsiaEastern Asia377829Tokyo126714000
2LatviaEuropeNULL64589Riga2424200
3MexicoNorth AmericaCentral America1958201Mexico City98881000
.....................
15MaltaEuropeSouthern Europe316Valletta380200

Everything was clear?

To check for a range of values, we should use the BETWEEN operator. This operator requires two values: the start-value and the end-value of the range. Also, the AND keyword should be placed between these values.

Let's see an example:

123
SELECT name, population FROM country WHERE population BETWEEN 100000 AND 3000000;

Task

Write an SQL query that returns the name, capital, and population columns from the country table (please retrieve these columns in this order), for all countries with a population between 6000000 and 80000000. Then sort the result by capital from A to Z. You have to do it like in the example above.

Pay attention to the population, and enter these numbers correctly. Otherwise, you will get an Internal server error.

Here's a short example of the country table:

idnamecontinentregionsurfaceareacapitalpopulation
1JapanAsiaEastern Asia377829Tokyo126714000
2LatviaEuropeNULL64589Riga2424200
3MexicoNorth AmericaCentral America1958201Mexico City98881000
.....................
15MaltaEuropeSouthern Europe316Valletta380200

Section 3. Chapter 5
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