![]() The MySQL server sends the results to the MySQL client.The Query Execution Engine executes the plan by making calls to the Storage engine through special handler interfaces.The optimizer may ask the Storage engine for statistics about the tables referenced in your query before execution. The query is parsed, preprocessed, and finally optimized into a query execution plan by the MySQL query optimizer.The MySQL client sends your query to the MySQL server using the MySQL Client/Server Protocol.These steps are complex internally but can be summarized below: Understanding how these steps work can unlock powerful insights into how you can optimize your queries. MySQL processes your query in a series of steps. Learn how the EXPLAIN and EXPLAIN ANALYZE keywords provide information about how MySQL databases execute queries.Learn how to control and modify the default query execution plan of your query.Understand how MySQL optimizes and executes your queries.Learn how you can optimize your queries for faster response times.Learn how to identify slow queries in MySQL using several query profiling techniques.This guide aims to help you improve your MySQL database speed by optimizing your queries. Even if you do other optimization techniques such as good schema design or indexing, if your queries are wrong, they will still affect your database’s performance. ![]() ![]() However, poorly written queries can prevent the optimizer from performing well. The built-in MySQL query optimizer does an excellent job of optimizing the execution of your queries.
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