10 SQL changes. One took 30 seconds. It cut query time by 85%.

📰 Dev.to · <devtips/>

Optimize SQL queries to significantly reduce execution time, with one change taking just 30 seconds to implement and yielding an 85% reduction in query time

intermediate Published 12 May 2026
Action Steps
  1. Read the 2015 research paper on SQL optimization to understand the methodology and findings
  2. Analyze existing SQL queries to identify potential bottlenecks and areas for improvement
  3. Apply the top 10 SQL changes to optimize query performance, starting with the simplest and quickest to implement
  4. Test and measure the impact of each change on query execution time
  5. Refine and iterate on the optimized queries to achieve further performance gains
  6. Compare the results of the optimized queries to the original queries to quantify the improvements
Who Needs to Know This

Database administrators, developers, and data analysts can benefit from learning how to optimize SQL queries to improve application performance and reduce latency

Key Insight

💡 Small, targeted changes to SQL queries can have a significant impact on performance, with some changes taking only seconds to implement

Share This
💡 Optimize your SQL queries and cut execution time by up to 85% with these 10 simple changes!

Full Article

A 2015 research paper tested every tip against real data. Most developers have never seen it. The...
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