Locally installing wordpress. Database problem

Please read this official article from WordPress. Some from there: Before resorting to desperate measures, there are a number of reasons for the WordPress white screen of death: 1. A Plugin is causing compatibility issues. 2. Your Theme may be causing the problem. 3. Your Theme directory may be missing or renamed.

Connection of mysql DB with wordpress

1.Wordpress is written in PHP and it’s very dynamic. 2.If you use wordpress, you don’t need to worry about a database.Wordpress core files will handle that.The database connection infomtion is located in wp-config.php. 3.It really don’t require coding when you use worpdress ,there are plenty of handy themes and plugins out there.