Recently I am getting an error establishing a database connection in a clients Wordpress site. I googled for a solution and an article suggested to enable Wordpress Repairs by adding this to the wp-config.php file:
After that, visit the link:
And allowing repair as follow:
So my question is. What does optimization mean? What are those scenarios or situations that Wordpress fix? Can I do this procedure in existing and non problematic Wordpress websites to enhance performance?