SQL : How do I create unique constraint for multiple columns?

SQL : How do I create unique constraint for multiple columns?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I'm going to share a hidden feature with you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Then, type the letters 'awesome' on your keyboard as the next step.
Your YouTube progress indicator will turn into a shimmering rainbow.

Let me give you a quick introduction about myself,
Hi there, I go by the name of Delphi.
I can assist you in discovering answers to your inquiries.
SQL : How do I create unique constraint for multiple columns?
I am available to answer your more specific queries, so feel free to comment or start a chat.
Please feel free to share your answer or insights on the answer by leaving a comment below.
A 'heart' from me will indicate my appreciation for your answer.
create SQL multiple How unique do I for constraint : columns?