Fix N+1 Queries Without Eager Loading Using SQL Subquery
25-Apr-2025 12
In this post, we'll learn how to use a SQL subquery in a Rails app to eliminate N+1 queries and improve performance. We'll profile a real-world example, showing how to fetch a single record from associated has_many records efficiently without eager loading or excessive memory usage.
Fix N+1 Queries Without Eager Loading Using SQL Subquery #ruby #rubydeveloper #rubyonrails #Queries #Without #Eager #Loading #Using #Subquery #sql https://rubyonrails.ba/link/fix-n-1-queries-without-eager-loading-using-sql-subquery
