Summary  
This chapter explains how to filter data by checking if a value falls within a specified range using the BETWEEN operator combined with AND.

General domain of usage  
Database querying

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.

Here is the syntax for using the `BETWEEN` operator: 

```sql
SELECT columns 
FROM table 
WHERE column BETWEEN value_from AND value_to;
```

Let's see an example:

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

This course is perfect for beginners ready to explore the world of SQL. Whether you're just starting out in database management or aiming to use SQL for your application development projects, this course covers the essentials. You'll quickly learn how to leverage the full potential of SQL, from querying and managing data to seamlessly integrating it into real-world applications. By the end of the course, you'll have the confidence and skills to solve practical problems with SQL and enhance your development process.

In this section, we will learn how to use the SQL SELECT statement to get a single table column, multiple table columns, and all table columns. We will also find out how to return unique values.

In this section, we’ll explore how to organize and prioritize the data returned by a query using the ORDER BY clause. Placed at the end of a SELECT statement, this clause lets you sort your results by one or multiple columns, either in ascending or descending order, enabling more meaningful and easily interpretable data output.

In this section, we will learn how to filter returned data using the SELECT statement's WHERE clause. We will learn how to test for equality, inequality, more and less significant than value ranges, and NULL values.

In this section, we’ll explore how to refine your search conditions by combining WHERE clauses with the AND and OR operators. We’ll also cover how the NOT operator can be used to exclude certain results.

In this section, we will learn what the SQL aggregate functions are and how to use them to summarize table data.

Checking for a Range of Values

Solution

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Checking for a Range of Values

Solution