有一个名为comment_id
的表格的pic_alb_love
列,我想在下面的查询中添加,但我不知道如何。实际上我想要做的是计算表comment_id
的总pic_alb_love
。
SELECT users_pics.wardrobe,
profile.fname,
users_pics.pic,
users_pics.u_pic_id,
users_pics.email,
users_pics.make,
users_pics.designer,
photo_comment.comment,
max_photo_comment.count_pic_id
FROM dbo.users_pics
INNER JOIN profile
ON users_pics.email = profile.email
LEFT Join (SELECT pic_id
,MAX(comment_id) max_comment_id
,COUNT(pic_id) count_pic_id
FROM photo_comment
GROUP BY pic_id
) max_photo_comment
On users_pics.u_pic_id = max_photo_comment.pic_id
LEFT Join photo_comment
On max_photo_comment.pic_id = photo_comment.pic_id
AND max_photo_comment.max_comment_id = photo_comment.comment_id
WHERE users_pics.wardrobe = MMColParam
AND users_pics.email = MMColParam2
ORDER BY u_pic_id asc
这些是表pic_alb_love的各个字段:
(comment_id,pic,love_com, wardrobe, email
,com_name,resp_email, play_count, com_stat)
答案 0 :(得分:0)
LEFT JOIN (SELECT Pic
,Count(*) [CommentCount]
FROM pic_alb_love
GROUP BY Pic) c
ON c.Pic=u_pic_id
假设pic_alb_love.pic
是桌面上的FK ......
在选择列表中使用[CommentCount]
。