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Danielt

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  • Foydalanuvchi Danielt maqolani yaratdi

    Challenge: FriendBook

    Javobi bilan

    Here's some help for this challenge, it is a little bit tricky.  SELECT a.fullname, b.fullname FROM friendsJOIN persons aON friends.person1_id = a.idJOIN persons bON friends.person2_id = b.id; but ...

    1. Hamjamiyat
    2. Study Group

  • Foydalanuvchi Danielt sharhladi

    SELECT movies.title, sequel.title as sequel_titleFROM moviesLEFT OUTER JOIN movies sequelON movies.sequel_id = sequel.id;

    1. Hamjamiyat
    2. Study Group
    3. Challenge: Sequels in SQL
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