Which statement about LEFT JOIN is correct?

Problem Statement

Explanation

LEFT JOIN preserves every row from the left input and fills right-side columns with NULL when a match is missing. Use it to find presence plus absence cases, such as customers without orders.

Code Solution

SolutionRead Only

SELECT c.id, o.id AS order_id
FROM customers c
LEFT JOIN orders o ON o.customer_id = c.id;

Practice Sets

This question appears in the following practice sets:

Joins Masterclass

Next Question

Master Interviews
Anywhere, Anytime

Which statement about LEFT JOIN is correct?

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

Which statement about LEFT JOIN is correct?

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