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HOW SQL QUERIES WORK: SQL QUERY EXECUTION ORDER FOR TECH INTERVIEWS

dev.to7 min read

Summary from the TLDR Web Dev newsletter

A database management system parses, optimizes, and executes a SQL query in a specific order, starting with `FROM` and `JOIN` before `SELECT`. The process includes steps like tokenization, execution plan generation, data retrieval, filtering, sorting, and aggregation. Understanding this execution flow helps in writing efficient queries and optimizing database performance.