Answers for "create foreign key postgresql"

SQL
3

postgres add foreign key to existing table

ALTER TABLE tblA ADD COLUMN colA VARCHAR(10); /* 1st add column */
ALTER TABLE tblA ADD CONSTRAINT colA /* Make colA on tblA a foreign key */
FOREIGN KEY (colA) REFERENCES tblB (colB); /* colB must be a pk on tblB*/
Posted by: Guest on August-27-2021
4

postgres add foreign key to existing table

UPDATE student
SET name = institute.inst_name
FROM institute
WHERE student.student_id = institute.inst_id;
Posted by: Guest on August-19-2021
1

postgre alter table foreign key

ALTER TABLE distributors ADD CONSTRAINT distfk FOREIGN KEY (address) REFERENCES addresses (address) MATCH FULL;
Posted by: Guest on June-07-2021
2

psql create table foreign keys

# id_user is the primary key of the table users:
create table lists(
id_list serial not null primary key,
id_user int references users(id_user),
is_temp int
);
Posted by: Guest on January-15-2021

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