Enqueuing the stylesheet

I’ve come across a variety of different statements regarding whether one needs to enqueue the parent and child theme stylesheets, depending on how the parent theme has been written.

Please could you clarify for me the position with regard to Miranda. What code do I need to put into my child theme’s functions.php in order to have the parent style and the child style both take effect, with the child style overriding the parent where both apply.