重複結果內部聯接查詢

Question

我想從4個表中檢索數據：

1. users_profile
2. FRIEND_LIST
3. bs_items
4. bs.photos

我試圖找回由用戶的朋友上傳的產品，爲此我做了如下查詢

select F.friend_id,F.status,F.uid, b.owner_id,b.price, b.currency, 
    b.item_name,b.item_id,bs.productId,bs.userId,bs.photo_thumb,u.uid,u.fname, 
    u.lname, u.profile_pic 
from bs_items b,bs_photos bs,friend_list F,users_profile u 
where F.status=1 and F.uid='5' and U.uid=F.friend_id 
    and b.owner_id=F.friend_id 
    and b.item_id=bs.productId and b.owner_id=bs.userId 
order by b.timestamp desc 

但上面的查詢給我想要的結果，但它重複它們。例如，我有一個朋友上傳了產品，然後記錄取回並重復了5次。誰能幫我這個？

Answer 1

試試這個可能適合你。

select F.friend_id,F.status,F.uid, b.owner_id,b.price, b.currency,b.item_name,b.item_id,bs.productId,bs.userId,bs.photo_thumb,u.uid,u.fname,u.lname,u.profile_pic 
from users_profile u inner join friend_list F on u.uid=f.friend_id 
Inner join bs_items b on b.owner_id=F.friend_id 
inner join bs_photos bs on b.item_id=bs.productId 
where F.status=1 and F.uid='5' 
Group by F.uid 
order by b.timestamp desc