TLDR Web Dev · ARTICLES & TUTORIALS
HOW SQL QUERIES WORK: SQL QUERY EXECUTION ORDER FOR TECH INTERVIEWS
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.