The N+1 query problem is a common ORM performance issue where an application executes one query to fetch a list of items, followed by N additional queries to fetch related data for each item, resulting in N+1 total database queries instead of a single optimized query, which significantly degrades backend performance.
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N+1 Query Problem Explained⚡Backend Performance Killer #shorts #systemdesign #database #viral本站添加:
In back-end systems, what is n + 1 query problem? Option A, too many inserts.
Option B, cache miss. Option C, multiple DB queries instead of one optimized query. Option D, index issue. And the correct answer is option C. This is a common ORM problem which kills the performance. If you want to know in detail about the basics of database, refer to this 8-hour crash course video and subscribe to the channel.
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