How does a RIGHT JOIN relate to a LEFT JOIN?

Problem Statement

Explanation

RIGHT JOIN keeps all rows from the right input and matches from the left; LEFT JOIN does the opposite. Swapping table order turns one into the other. Most teams standardize on LEFT JOIN for readability and consistency.

Code Solution

SolutionRead Only

SELECT *
FROM A LEFT JOIN B ON B.k = A.k;
-- same rows as
SELECT *
FROM B RIGHT JOIN A ON B.k = A.k;

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How does a RIGHT JOIN relate to a LEFT JOIN?

Problem Statement

Explanation

Code Solution

Practice Sets

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How does a RIGHT JOIN relate to a LEFT JOIN?

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