我有點困惑在這裏需要一些幫助......如何INNER JOIN超過兩個類別？
的情況是我做了三個表（fr_Leagues，fr_nations和fr_confeds），我想要做的就是添加一個聯賽足見類別的名稱不是帶分頁的id。這裏是代碼：
現在固定！
"SELECT
a.id as confed_id,
a.fr_short_name as confed_name,
b.id as nation_id,
b.fr_name as nation_name,
c.id as league_id,
c.fr_name as league_name"
." FROM fr_confeds as a
INNER JOIN fr_nations as b ON a.id = b.confed_id
INNER JOIN fr_leagues as c ON b.id = c.nation_id"
." LIMIT $paginate->start, $paginate->limit"
您不知道如何將不同的表格連接在一起。在每個INNER JOIN，你需要把它：
INNER JOIN fr_nations ON a.<someColumn> = b.<anotherColumn> INNER JOIN fr_leagues ON a.<someColumn> = b.<anotherColumn>
你可以請更具體嗎？ – HiroHito 2012-01-28 07:37:20
收到這個錯誤： ＃1054 - 未知列 'C.league_id' 在 '上子句' 這是我加入： FROM fr_confeds爲A INNER JOIN fr_nations爲B ON A.id = B.confed_id INNER JOIN fr_leagues作爲C ON B.confed_id = C.league_id LIMIT $ paginate-> start，$ paginate-> limit – HiroHito 2012-01-29 04:24:59
工作就像一個魅力，謝謝@hakre – HiroHito 2012-01-29 07:09:23
使用此查詢
SELECT * FROM fr_confeds爲A
INNER JOIN fr_nations爲B ON A.id = B.confed_id
INNER JOIN fr_leagues如C ON B.confed_id = C.league_id
LIMIT $ paginate->啓動，$ paginate->限制
你可以發表你的表格架構嗎？ – 2012-01-28 06:56:44