Скачать или смотреть MySQL : Select all duplicate rows based on one or two columns?

MySQL : Select all duplicate rows based on one or two columns?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I have a secret feature that I want to reveal to you.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Next, enter the letters 'awesome' on your keyboard.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

Here's a short introduction about myself,
Welcome, I'm Delphi.
I can provide you with assistance to help you answer your questions.
MySQL : Select all duplicate rows based on one or two columns?
Please feel free to comment or chat with me for more detailed information.
If you have an answer, or any insights to the answer, please comment below.
Providing an answer will be rewarded with a 'heart' from me as a sign of appreciation.
based on or Select MySQL one all two rows duplicate columns? :