Database Performance Development Tutorials, Guides & Insights

   composer require barryvdh/laravel-debugbar --dev

Debugbar highlights duplicate queries and slow-performing SQL.

Avoid loading unnecessary relationships. Only fetch what you need:

   $posts = Post::with('author')->select(['id', 'title', 'author_id'])->get();

Indexes work by creating a separate data structure that holds the indexed columns and a pointer to the actual data in the table. This allows MySQL to quickly locate and retrieve the requested data without scanning every row in the table.

If an index is no longer needed, it can be removed using the DROP INDEX command:

mysqldumpslow -s t /path/to/slow-query.log

This command sorts queries by time, helping you identify the slowest queries.

Efficient SELECT statements can greatly improve query performance.

Avoid using SELECT * as it retrieves all columns, consuming more resources than necessary. Specify only the columns you need.