/SQL/Mysql alter add foreign key

Mysql alter add foreign key

Alter table add foreign key mysql

ALTER TABLE orders
ADD 
FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE;

9

Mysql alter add foreign key

ALTER TABLE ordenes ADD ticket VARCHAR(50) NOT NULL;
ALTER TABLE ordenes ADD CONSTRAINT fk_ticket FOREIGN KEY (ticket) REFERENCES tickets(ticket);

1

Source: es.stackoverflow.com

Similar codes

0 vote270 views1 answer
Oarcale list objects
SQL
0 vote268 views1 answer
How to to get current date in sql
SQL
1 vote258 views1 answer
Mysql view command
SQL
9 votes254 views4 answers
Add primary key to existing table sql
SQL
0 vote272 views2 answers
Oracle select
SQL
1 vote290 views2 answers
Intersect sql
SQL
0 vote264 views1 answer
Reona
SQL
0 vote292 views3 answers
Postgres date difference seconds
SQL
0 vote254 views1 answer
Postgresql regular expression special characters
SQL
16 votes293 views3 answers
Get count of duplicate records
SQL

Share