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What strategies would you implement to optimize query performance in a PostgreSQL database with complex joins and large datasets?

To optimize query performance in PostgreSQL, I would ensure proper indexing, analyze and optimize query execution plans, and consider partitioning large tables. Additionally, using materialized views for frequently accessed aggregated…

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Can you describe a time when you had to optimize a slow-performing SQL query in a production environment? What steps did you take, and what was the outcome?

I once encountered a slow SQL query that impacted our application’s performance significantly. I analyzed the execution plan, identified missing indexes, and modified the query to reduce complexity. After implementing…

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