Query Optimization Development Tutorials, Guides & Insights

Test cursor-based pagination:

   public function testCursorPagination()
   {
       $response = $this->get('/api/posts?cursor=10');

       $response->assertStatus(200)
           ->assertJsonStructure([
               'data' => [['id', 'title']],
               'meta' => ['limit', 'next_cursor'],
           ]);
   }

Result: Minimizes the amount of data retrieved.

Write tests to ensure your queries are optimized:

To view existing indexes on a table, use the SHOW INDEX command:

SHOW INDEX FROM table_name;

The slow query log records queries that exceed a specified execution time. Analyzing this log can help you identify and optimize slow queries.

To enable the slow query log, add the following lines to your my.cnf or my.ini file:

SELECT first_name, last_name FROM users WHERE user_id = 1;

Use LIMIT to restrict the number of rows returned by a query, especially for large datasets.