Answers for "how value of primary key from parent table comes in foreign key of child table in mysql"

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

update foreign key value in mysql

SET foreign_key_checks = 0;
UPDATE languages SET id='xyz' WHERE id='abc';
UPDATE categories_languages SET language_id='xyz' WHERE language_id='abc';
SET foreign_key_checks = 1;

Posted by: Guest on July-27-2020

Code answers related to "how value of primary key from parent table comes in foreign key of child table in mysql"

Code answers related to "SQL"

Browse Popular Code Answers by Language

Answers for "how value of primary key from parent table comes in foreign key of child table in mysql"

Code answers related to "how value of primary key from parent table comes in foreign key of child table in mysql"

Code answers related to "SQL"

Browse Popular Code Answers by Language

Answers for "how value of primary key from parent table comes in foreign key of child table in mysql"

Code answers related to "how value of primary key from parent table comes in foreign key of child table in mysql"

Code answers related to "SQL"

Browse Popular Code Answers by Language

Popular Programming Languages

Advertisements

Company

Compilers

Help

Connect with us