How big database can wordpress can handle

Question

press i have to develop a site that will mainly deal in displaying data from databse ,searching data among millions of fields .

So i want to know can Word-press easily handle such case ?

What could be the issues i could face with word-press.

Does Using wpdb compared to normal query make performance issue ?

Answer 1

Lets say your WordPress website which have 1 million posts. This going to take up a lot of memory and CPU usage especially if you get a lot of traffic. So your server should handle that. You can use a good caching plugin to reduce server load. You can cache the database to make your search faster.

WP_Query use wpdb class to query the database. WP_Query useful to deal with native WordPress tables. And wpdb is helpful when you need to access data in your own tables.