mysql

MySQL Subquery

Correlated subquery execution.

SELECT * FROM orders WHERE amount > (SELECT AVG(amount) FROM orders);

In this example, the subquery type indicates it's executed for each row or once depending on correlation. Optimization often involves rewriting subqueries as joins.

Interactive Execution Plan

EXPLAIN Output

Run: EXPLAIN FORMAT=JSON your_query; or EXPLAIN your_query;

Enter SQL EXPLAIN output to visualizeSupports PostgreSQL EXPLAIN ANALYZE, MySQL EXPLAIN, and SQLite EXPLAIN QUERY PLAN formats