Answers for "mysql constraint to have only one foreign key existing at the same time"

foreign key mySql

CREATE TABLE parent (
    id INT NOT NULL,
    PRIMARY KEY (id)
) ENGINE=INNODB;

CREATE TABLE child (
    id INT,
    parent_id INT,
    INDEX par_ind (parent_id),
    FOREIGN KEY (parent_id)
        REFERENCES parent(id)
        ON DELETE CASCADE
) ENGINE=INNODB;

Posted by: Guest on March-02-2020

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Answers for "mysql constraint to have only one foreign key existing at the same time"

Code answers related to "mysql constraint to have only one foreign key existing at the same time"

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Answers for "mysql constraint to have only one foreign key existing at the same time"

Code answers related to "mysql constraint to have only one foreign key existing at the same time"

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