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  1. #1
    Registered User
    Join Date: Sep:2010
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    SQL -

    ,
    - ?
    SQL. CREATE TABLE FOREIGN KEY REFERENCES ...
    ALTER TABLE ... ADD FOREIGN KEY REFERENCES ...
    (1 1, 1 ) ?

  2. #2
    Defender Kaspirtov's Avatar
    Join Date: Jun:2006
    Location: Sf
    Posts: 7,414
    Quote Originally Posted by traian1 View Post
    ,
    - ?
    SQL. CREATE TABLE FOREIGN KEY REFERENCES ...
    ALTER TABLE ... ADD FOREIGN KEY REFERENCES ...
    (1 1, 1 ) ?
    CREATE -
    ALTER -

    .. FOREIGN KEY,

    , .
    , (Person) (Contacts), Contacts Person , (.. Contacts foreign key Person ). , , - , .
    " , , , , ."

  3. #3
    ! vbTheKing's Avatar
    Join Date: Sep:2003
    Location:
    Posts: 4,138
    MySQL , engine-a InnoDB, MyISAM FOREIGN KEYS.
    Kaspirtov , , . , 1:1 , .. .
    ER , , .
    ''? * *
    - !
    ...

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