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How can I optimize database queries for better performance in WordPress?
Asked on Feb 10, 2026
Answer
Optimizing database queries in WordPress can significantly enhance your site's performance by reducing load times and server strain. This involves using efficient coding practices and leveraging WordPress's built-in functions to minimize unnecessary database calls.
<!-- BEGIN COPY / PASTE -->
// Example of using WP_Query for optimized database queries
$args = array(
'post_type' => 'post',
'posts_per_page' => 10,
'no_found_rows' => true, // Avoids counting total rows for pagination
'update_post_meta_cache' => false, // Reduces meta data queries
'update_post_term_cache' => false, // Reduces taxonomy queries
);
$query = new WP_Query( $args );
if ( $query->have_posts() ) {
while ( $query->have_posts() ) {
$query->the_post();
// Output post data
}
wp_reset_postdata();
}
<!-- END COPY / PASTE -->Additional Comment:
- Use caching plugins like WP Super Cache or W3 Total Cache to reduce database load.
- Consider using object caching with a service like Redis or Memcached.
- Regularly optimize your database tables using plugins like WP-Optimize.
- Limit the use of complex queries and avoid using SELECT * when specific fields can be selected.
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