/SQL/Mysql remove foreign key constraint

Mysql remove foreign key constraint

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;

Source: dev.mysql.com

Drop all foreign key constraints mysql

SET foreign_key_checks = 0;

Source: stackoverflow.com

Mysql remove foreign key constraint

ALTER TABLE jobs DROP FOREIGN KEY constraint_name

Drop foreign key mysql

ALTER TABLE table_name DROP FOREIGN KEY constraint_name

Source: tutorialspoint.com

Similar codes

1 vote111 views1 answer
Full sql mode
SQL
1 vote109 views2 answers
Job for mysql.service failed because the control process exited with error code. see "systemctl status mysql.service" and "journalctl -xe" for details.
SQL
0 vote109 views1 answer
Sql query to force the database to be drop
SQL
2 votes104 views1 answer
Sql update \
SQL
10 votes98 views4 answers
Drop primary key
SQL
0 vote141 views1 answer
Count column of tables psql
SQL
3 votes102 views2 answers
Oracle for loop
SQL
3 votes90 views2 answers
Oracle synonym
SQL
2 votes99 views1 answer
Sql like variable
SQL
1 vote105 views1 answer
Create new table from old table
SQL