How to link two relational tables in mySQL

Question

I have two tables

1. Video (v_id, v_duration, v_status, upload_date) in the video table the primary key is v_id.
2. video_tags(tag_name, video_id)

The video can have many tags, that's why I separated them into two tables. The question is when I create these two tables using mySQL database, I managed to create the first table using the below sql statement, create table video (v_id int, v_duration double, v_status varchar(50) default 'needs approval', upload_date DATE, primary key(v_id))

but the second I couldn't because of misunderstanding of the reference keys.

Is this mySQL statement true?

create table video_tags(tag_name varchar(50), video_id int, primary key(vidoe_id, tag_name))

Answer 1

This should work:

CREATE TABLE `video_tags` (
`tag_id` INT NOT NULL,
`tag_name` VARCHAR(50) NOT NULL,
`video_id` INT NOT NULL,
 PRIMARY KEY (`tag_id`),
 INDEX `video_id` (`video_id` ASC),
 INDEX `tag_name` (`tag_name` ASC),
 CONSTRAINT `video_id_fk`
 FOREIGN KEY (`video_id`)
 REFERENCES  `video` (`v_id`))

Use another column as primary key