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Using the NOT Operator | Advanced Data Filtering
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

bookUsing the NOT Operator

In order to cancel the condition, you need to use the keyword NOT.

The NOT operator is essential when you want to exclude certain records from your query results. It allows you to specify conditions that should not be met, effectively filtering out unwanted data. This can be particularly useful in scenarios where you need to focus on a subset of data that does not meet specific criteria.

First, let’s look at the syntax:

Now let's look at the example:

123
SELECT name, capital FROM country WHERE NOT continent='Asia';
copy

Explanation: The NOT operator rejects the condition here; hence, it matches the continent to anything that is not Asia.

Here is the country table we are working with:

Task
test

Swipe to show code editor

Write an SQL query to get the name and capital columns from the country table (please retrieve these columns in this order). These countries must be not from the 'South America' continent.

Note

Pay attention to the fact that the names of the continents begin with a capital letter and not a lowercase one; this is very important.

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Section 4. Chapter 5
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bookUsing the NOT Operator

In order to cancel the condition, you need to use the keyword NOT.

The NOT operator is essential when you want to exclude certain records from your query results. It allows you to specify conditions that should not be met, effectively filtering out unwanted data. This can be particularly useful in scenarios where you need to focus on a subset of data that does not meet specific criteria.

First, let’s look at the syntax:

Now let's look at the example:

123
SELECT name, capital FROM country WHERE NOT continent='Asia';
copy

Explanation: The NOT operator rejects the condition here; hence, it matches the continent to anything that is not Asia.

Here is the country table we are working with:

Task
test

Swipe to show code editor

Write an SQL query to get the name and capital columns from the country table (please retrieve these columns in this order). These countries must be not from the 'South America' continent.

Note

Pay attention to the fact that the names of the continents begin with a capital letter and not a lowercase one; this is very important.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 4. Chapter 5
toggle bottom row

bookUsing the NOT Operator

In order to cancel the condition, you need to use the keyword NOT.

The NOT operator is essential when you want to exclude certain records from your query results. It allows you to specify conditions that should not be met, effectively filtering out unwanted data. This can be particularly useful in scenarios where you need to focus on a subset of data that does not meet specific criteria.

First, let’s look at the syntax:

Now let's look at the example:

123
SELECT name, capital FROM country WHERE NOT continent='Asia';
copy

Explanation: The NOT operator rejects the condition here; hence, it matches the continent to anything that is not Asia.

Here is the country table we are working with:

Task
test

Swipe to show code editor

Write an SQL query to get the name and capital columns from the country table (please retrieve these columns in this order). These countries must be not from the 'South America' continent.

Note

Pay attention to the fact that the names of the continents begin with a capital letter and not a lowercase one; this is very important.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

In order to cancel the condition, you need to use the keyword NOT.

The NOT operator is essential when you want to exclude certain records from your query results. It allows you to specify conditions that should not be met, effectively filtering out unwanted data. This can be particularly useful in scenarios where you need to focus on a subset of data that does not meet specific criteria.

First, let’s look at the syntax:

Now let's look at the example:

123
SELECT name, capital FROM country WHERE NOT continent='Asia';
copy

Explanation: The NOT operator rejects the condition here; hence, it matches the continent to anything that is not Asia.

Here is the country table we are working with:

Task
test

Swipe to show code editor

Write an SQL query to get the name and capital columns from the country table (please retrieve these columns in this order). These countries must be not from the 'South America' continent.

Note

Pay attention to the fact that the names of the continents begin with a capital letter and not a lowercase one; this is very important.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 4. Chapter 5
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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