Panduan pengendalian MySQL menggunakan UNION dan LIMIT

Question

Jadi, saya menghadapi masalah ini.

Saya perlu mendapatkan berbilang rekod daripada jadual berbeza menggunakan inner join dan menggunakan UNION atau UNION ALL untuk penomboran, kod di bawah digunakan untuk mendapatkan semua rekod dan kiraan. Ini musuh saya:

(SELECT pp.id as id, pp.*, i.name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
        inner join users u ON pp.users_id $username
        inner join inn_oficial i ON i.photo_id = pp.property_id
        left join plans p ON pp.plans_id = p.id
        WHERE (pp.type = 1 or pp.type = 2) 
        $where ) 
       UNION 
        (SELECT pp.id as id, pp.*, i.model as name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
        inner join users u ON pp.users_id $username
        inner join rent_oficial i ON i.photo_id = pp.property_id
        left join plans p ON pp.plans_id = p.id
        WHERE pp.type = 3
        $where) 
       UNION 
        (SELECT pp.id as id, pp.*, i.name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
        inner join users u ON pp.users_id $username
        inner join fish_pay_oficial i ON i.photo_id = pp.property_id
        left join plans p ON pp.plans_id = p.id
        WHERE pp.type = 4
        $where ) 
       UNION 
        (SELECT pp.id as id, pp.*, i.name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
        inner join users u ON pp.users_id $username
        inner join stores_oficial i ON i.photo_id = pp.property_id
        left join plans p ON pp.plans_id = p.id
        WHERE pp.type = 5
        $where)
       UNION
        (SELECT pp.id as id, pp.*, i.name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
        inner join users u ON pp.users_id $username
        inner join transfer_oficial i ON i.photo_id = pp.property_id
        inner join plans p ON pp.plans_id = p.id
        WHERE pp.type = 6
        $where)
        GROUP BY pp.id
        ORDER BY pp.id

Saya mengambil contoh ini daripada Klausa UNION 13.2.9.3 dan mencubanya pada skrip

Apabila saya cuba menjalankan kod, ia melaporkan ralat

在第1行的'GROUP BY id ORDER BY id LIMIT 0.25'旁边，你的SQL语法有错误

Maaf, bahasa Inggeris saya teruk, itu bukan bahasa ibunda saya

Answer 1

Saya menyelesaikan kskskskks, cuma tambah lajur pp id sebagai id_p dan kemudian dipesan dengan itu

(SELECT pp.id as id_p, pp.*, i.name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
    inner join users u ON pp.users_id $username
    inner join inn_oficial i ON i.photo_id = pp.property_id
    left join plans p ON pp.plans_id = p.id
    WHERE (pp.type = 1 or pp.type = 2) 
    $where ) 
   UNION 
    (SELECT pp.id as id_p, pp.*, i.model as name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
    inner join users u ON pp.users_id $username
    inner join rent_oficial i ON i.photo_id = pp.property_id
    left join plans p ON pp.plans_id = p.id
    WHERE pp.type = 3
    $where) 
   UNION 
    (SELECT pp.id as id_p, pp.*, i.name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
    inner join users u ON pp.users_id $username
    inner join fish_pay_oficial i ON i.photo_id = pp.property_id
    left join plans p ON pp.plans_id = p.id
    WHERE pp.type = 4
    $where ) 
   UNION 
    (SELECT pp.id as id_p, pp.*, i.name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
    inner join users u ON pp.users_id $username
    inner join stores_oficial i ON i.photo_id = pp.property_id
    left join plans p ON pp.plans_id = p.id
    WHERE pp.type = 5
    $where)
   UNION
    (SELECT pp.id as id_p, pp.*, i.name, p.name as plans_name, u.username,u.email,u.phone, DATE_ADD(pp.init_date, INTERVAL pp.avaliable_days DAY) as end_date FROM property_purchase pp
    inner join users u ON pp.users_id $username
    inner join transfer_oficial i ON i.photo_id = pp.property_id
    inner join plans p ON pp.plans_id = p.id
    WHERE pp.type = 6
    $where)
    ORDER BY id_p $pagination