Optimizing GROUP BY in MySQL: Insights from Real-Life Query Analysis
My current query: SELECT eod.date, SUM(eod.stable_price) AS sumStablePrice FROM item_eod eod WHERE eod.date >= CURRENT_DATE…
All topics
Database
MySQL
Others
Tips
All topics
7 Essential Caching Strategies to Boost Backend Performance and Scalability
1. In-Memory Caching Description: Stores frequently accessed data in the application’s memory, which speeds up…
All topics
Ruby
Ruby on Rails
Avoid N+1 Queries in Rails: Best Practices for Optimized Performance
To avoid the N+1 query problem in Rails, you need to minimize database queries that…
All topics
Database
NoSQL
Understanding MongoDB .hint() Method: How It Works and Its Importance in Query Optimization
In the world of database management, optimizing queries for performance is crucial. MongoDB, a leading…
All topics
Architecture & Design
Database
MySQL
Buffer Cache Hit in MySQL: What It Is and Why It Matters
The InnoDB Buffer Pool in MySQL is essentially a cache that stores frequently accessed data…
All topics
Database
MySQL
MySQL Indexes: Boosting Query Performance with Column Order
In MySQL, the order of columns in a composite index (an index that spans multiple…