Prepend code to the_content via MySQL

I have a custom field called: _format_video_embed

i want the value of this field that is a youtube link added to the start of the posts that i have. There are over 1400 posts that does not have the video link in the post_content but in the post_meta field called _format_video_embed

Is there a way to add this via MySQL?

Some update command that could work?

SELECT wposts.ID, wposts.post_title, wposts.post_content,wposts.post_type, wpostmeta.*
    FROM wp_posts wposts, wp_postmeta wpostmeta
    WHERE wposts.ID = wpostmeta.post_id
    AND wpostmeta.meta_key LIKE '_format_video_embed'
    AND wposts.post_type = 'post'
    ORDER BY wposts.ID DESC

That selects all the fields i need. Now i need to insert the meta value into the post_content. as the first line.

Can anyone help me with that?

Or some code to add to my functions.php that copies that field?