create mysql table with one to many relationship

Question

I already created two tables say users and files . The users table has fields: user-id, username . The files table has fields: file-id, file-name and user-id.

If I use this relation then we have one file item pointing to only one customer. I want to use an array of users in the files table. How do I store it in table?

Answer 1

You'll need another table users_files with fields user-id, file-id to store that

Then you can insert as many users as you want for each file.

Use foreign keys to maintain integrity check