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- When you execute an SQL query prefixed with the EXPLAIN MySQL returns information about how it plans to execute the query. This information is presented in the form of a table with the various columns each providing insights into the different aspects of the query execution.
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Jan 27, 2024 · The EXPLAIN statement is used to obtain a query execution plan, showing how MySQL intends to execute a SELECT statement. This information can help identify bottlenecks and optimize query performance. To use EXPLAIN, simply prefix your SELECT query with the word EXPLAIN like so: EXPLAIN SELECT * FROM users;
When EXPLAIN is used with an explainable statement, MySQL displays information from the optimizer about the statement execution plan. That is, MySQL explains how it would process the statement, including information about how tables are joined and in which order.
Feb 20, 2024 · In MySQL we can use the EXPLAIN statement to get information about SQL queries that we run against the database. We can also get information about tables and views. EXPLAIN is a synonym for DESCRIBE (and its short form DESC).
Sep 3, 2023 · MySQL Explain is a powerful tool for improving the performance of your database queries. It provides valuable insights into how MySQL processes your queries and helps you identify areas for...
The EXPLAIN statement provides information about how MySQL executes statements: EXPLAIN works with SELECT, DELETE, INSERT, REPLACE, and UPDATE statements. When EXPLAIN is used with an explainable statement, MySQL displays information from the optimizer about the statement execution plan.
EXPLAIN works with SELECT, DELETE, INSERT, REPLACE, and UPDATE statements. EXPLAIN returns a row of information for each table used in the SELECT statement. It lists the tables in the output in the order that MySQL would read them while processing the statement.
