The DISTINCT operator is used to return only unique values, eliminating duplicates from the query results.

Example: Using DISTINCT

SELECT DISTINCT City
FROM FreedomFighters;

Do's and Don'ts

Do's

• Use DISTINCT to remove duplicates from result sets.
• Combine with multiple columns to get unique combinations.

Don'ts

• Don't use DISTINCT unnecessarily, as it can impact performance.
• Don't assume DISTINCT will always speed up your query.