19h ago · 8 min read · The N+1 query problem is the most common performance issue in Laravel applications, and it's the easiest to introduce accidentally. A developer adds $post->author->name in a Blade template, and suddenly a page that loaded 10 posts now executes 11 dat...
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Feb 10 · 18 min read · A comprehensive guide to understanding Object-Relational Mappers and one of the most common performance pitfalls in database-driven applications. 🤔 What is an ORM? ORM stands for Object-Relational Mapping. It's a programming technique that lets yo...
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Sep 19, 2025 · 2 min read · What is N + 1 problem? In simple terms, the N + 1 query problem happens when you: Run 1 query to fetch a list of records Then, for each of those N records, you run another query. That’s why it’s called N + 1: one main query plus N additional quer...
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Sep 17, 2025 · 6 min read · ✍️ 작성하게 된 이유 옷을 관리하는 서비스를 개발하면서 Cloth 엔티티와 그에 연관된 ClothWithAttributes, Attribute 데이터를 함께 조회하는 기능이 필요했다.그런데 연관 데이터를 조회할 때마다 쿼리가 폭발적으로 증가(N+1 문제) 하며, 성능이 급격히 저하되는 상황을 마주하게 되었다. Spring JPA의 대표적인 문제로 N+1임을 알고있었지만, 해결하는 방법은 Fetch Join밖에 몰랐다. 지연로딩되는 필드를 엔티...
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Jun 16, 2025 · 4 min read · Are your Django Rest Framework APIs feeling slow? Is your database groaning under the weight of too many queries? You might be facing the infamous N+1 query problem, a common performance bottleneck in ORM-based applications. In this post, we'll demys...
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Aug 11, 2024 · 2 min read · 咳咳咳，上篇教程教大家给斐讯 N1 降级并且刷了官改系统，可以当作一个电视盒子和下载机来使用。 有些小伙伴可能不想把它当作电视盒子，就想把它当作 NAS 或者是服务器，但是总不能拿 Android 玩吧，Android 也不是针对服务器设计的。 那么我说过，N1 不仅能刷官改，还能运行 Linux，而且是完整的 Linux 发行版，用 Linux 当服务器、NAS、下载机，体验总是要比 Android 好的。 这篇教程就教大家如何在斐讯 N1 运行 Linux 以及后续的优化，在此之前，需要将你...
Join discussionJun 28, 2024 · 4 min read · creww project 쿼리개선 시작 맨 처음 코드를 작성하면서 N+1 문제들을 생각 안하고 코드를 작성했다.그래서 도메인 순서대로 쿼리를 개선해야할지..어찌하지?생각하다가 일단 Postman을 실행시킨 뒤에 id가 1인 보드에 전체 게시글 요청을 보냈다.getPosts 라는 서비스 메서드를 먼저 해결하기로.. 문제점 쿼리 개선 전 서비스 로직 public Page<PostResponse> getPosts(Long boardId, int ...
TThunder commentedJun 11, 2024 · 3 min read · Have you ever noticed your endpoint response takes too long to respond? There could be many reasons for that, but one of the most common is spending a lot of time on database calls. A frequent cause of database problems in business logic is the N+1 q...
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Sep 4, 2023 · 3 min read · One of the most common performance bottlenecks in Ruby on Rails applications is the N+1 query problem. It's a scenario where you fetch a collection of records and then, for each record, perform an additional database query. This can lead to a signifi...
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Jun 2, 2023 · 3 min read · In this blog, we'll delve into the N+1 problem in Django, explore its causes and implications, and provide practical solutions to optimize your application's performance. Let's get started! What is the N+1 Problem? The N+1 problem occurs when an appl...
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