Hello Sov,

There are as many different methods of creating the backend as there are to create your website. Wordpress already has the back end readily available it is called the admin panel. If you're interested in using a framework such as Laravel then you can install a CMS using composer which provides all of the fundamentals, quite often referred to as a 'skeleton'.

if you use wordpress framework than wordpress has its own backend.but for other cms is best.

What do you want the back end to do? There may be a plugin that does what you want.

Hi,back-end is actually a database.wordpress has its own back-end and other use sql or my-sql.

Hi,
If wanted to start with wordpress then you wouldn't have to worry about backend, because wordpress already have it and ready to use. You can customize it the way you want it.