Images auto upload and sync with table

Hi Guys,
I have table with image URLs but I cannot upload each image manually.
Which way can you recommend ?

Do you mean you created a URL column? To upload image manually, you need a Attachment column.

@wingkwong , thank you.
If I will then use this table as lookup for other table - will I see images in this other table ?

I see that I not need such functionality:
when after creating the attachment column I change links in this column by SQL, I see the images from external cdn.
Thanks again!