Скачать или смотреть MySQL : How can I speed up my query. subquery is too slow

MySQL : How can I speed up my query. subquery is too slow
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

Here's a secret feature that I promised to disclose to you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Then, type the letters 'awesome' on the keyboard.
It will change your youtube progress bar into a flashing rainbow.

Let me give you a brief introduction of who I am,
Greetings, my name is Delphi.
I help you answer your questions.
MySQL : How can I speed up my query. subquery is too slow
I am happy to answer more specific questions, so please feel free to comment or chat with me.
Your input is valuable, so please comment below if you have an answer or any insights to the answer.
A 'heart' from me is a way of showing appreciation for your answer.
my is subquery up MySQL can speed I How too query. slow :