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What is the N+1 Query Problem in Laravel?

Laravel Published 26 Sept 2026 0 Views Verified
The N+1 query problem can occur when application code retrieves a collection of models and then lazily loads a related record for each model. This can create many database queries and negatively affect performance. Eager loading is a common solution.
#Laravel #N+1 #Eloquent #Performance #Eager Loading
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Answer & Explanation

4 Answers
Verified Correct Answer

A. Repeated Relationship Queries

N+1 occurs when one query retrieves parent records and another query is executed repeatedly for related data for each parent.
Additional Explanation
If 100 questions are loaded and each question separately loads its category, many additional queries can be generated. Eager loading can retrieve related data more efficiently.
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Editorial Answer 1
26 Sept 2026
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B. A CSS Bug

N+1 is not a CSS issue.
Additional Explanation
It is a database query pattern that can affect application performance.
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Editorial Answer 2
26 Sept 2026
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C. A PHP Syntax Error

N+1 is not a PHP syntax error.
Additional Explanation
It describes how database queries are generated by application code.
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Editorial Answer 3
26 Sept 2026
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D. A Browser Cache Type

N+1 is a database query performance pattern, not a browser cache type.
Additional Explanation
Caching and query optimization are separate concepts.
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Editorial Answer 4
26 Sept 2026