如何编写获取相关视频的查询？

Question

我的表是：

tb_videos

id,
name

tb_video_tags

id,
video_id,
tag

我想通过标签选择视频及其相关视频。

Answer 1

您可以尝试：

   SELECT v.id, v.name, vr.id AS related_id, vr.name AS related_name
     FROM tb_videos AS v
LEFT JOIN tb_video_tags AS vt
       ON vt.video_id = v.id
LEFT JOIN tb_videos AS vr
       ON vt.video_id = vr.id
      AND v.id != vr.id

Answer 2

SELECT v.name
FROM tb_video_tags t, tb_video v
WHERE v.id = t.video_id

尝试并享受乐趣