Скачать или смотреть SQL : ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails

SQL : ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I have a hidden feature that I promised to tell you about.
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.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

A brief presentation of myself,
Hi, my name is Delphi, nice to meet you.
I am willing to help you find the solutions to your questions.
SQL : ERROR 1452 (23000): Cannot add or update a child row: a foreign key constraint fails
If you have more specific queries, please feel free to reach out through comments or chat.
Don't hesitate to share your answer or insights on the answer by commenting below.
Your answer will be acknowledged and appreciated, and I will 'heart' it as a sign of gratitude.
SQL add constraint : fails a key row: Cannot update or foreign 1452 a (23000): child ERROR