What does an INNER JOIN return?

Problem Statement

Explanation

An INNER JOIN keeps only the intersection: rows that match on the join keys in both inputs. If a row does not find a partner, it is excluded. Use INNER JOIN when you need strictly related data and do not want NULLs from missing matches.

Code Solution

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SELECT o.id, c.name
FROM orders o
JOIN customers c ON c.id = o.customer_id;

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What does an INNER JOIN return?

Problem Statement

Explanation

Code Solution

Practice Sets

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Master Interviews Anywhere, Anytime

What does an INNER JOIN return?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which SQL statement retrieves all columns and rows from a table named employees?

Which clause filters rows before aggregation and affects which rows are grouped?

What is the default sort order when ORDER BY is used without ASC or DESC?

Which construct is commonly used to paginate results in SQL engines like Postgres and MySQL?

Which predicate correctly checks for missing values in standard SQL?

More from SQL & Databases

Master Interviews
Anywhere, Anytime