postgres add foreign key to existing table

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showing results for - "postgres add foreign key to existing table"
Laura
15 May 2019
1ALTER TABLE tblA ADD COLUMN colA VARCHAR(10); /* 1st add column */
2ALTER TABLE tblA ADD CONSTRAINT colA /* Make colA on tblA a foreign key */
3FOREIGN KEY (colA) REFERENCES tblB (colB); /* colB must be a pk on tblB*/
source
Matilda
30 Aug 2018
1CREATE TABLE so_items (
2	so_id INTEGER,
3  	...
4	FOREIGN KEY (so_id) REFERENCES so_headers (id)
5);
source
Lennart
15 Mar 2016
1UPDATE student
2SET name = institute.inst_name
3FROM institute
4WHERE student.student_id = institute.inst_id;
source
Iker
26 Mar 2017
1ALTER TABLE distributors ADD CONSTRAINT distfk FOREIGN KEY (address) REFERENCES addresses (address) MATCH FULL;
2
source
Eabha
18 Jan 2017
1CREATE TABLE orders (
2    order_id SERIAL,
3    dish_name TEXT,
4    customer_id INTEGER REFERENCES customers (id)
5);
6
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