PHP MySQL联接几个联接表

Question

There are 2 queries:

select * from gallery_images JOIN photo_galleries ON photo_galleries.albumID=gallery_images.albumID


select * from multimedia_video JOIN video_content ON multimedia_video.id=video_content.id_href

Also i have "albumDateCreated" field on "photo_galleries" table and "DateCreated" field on "multimedia_video". I want to sort my queries by these fields

What is the best technique to JOIN my 2 "joins"?

Answer 1

Just the way you created the others:

SELECT * FROM gallery_images
    JOIN photo_galleries ON photo_galleries.albumID=gallery_images.albumID
    JOIN multimedia_video ON photo_galleries.albumDateCreated=multimedia_video.DateCreated
    JOIN video_content ON multimedia_video.id=video_content.id_href