alter constraint postgres
/* Drop your constraint */
alter table yourtable drop constraint constraint_name;
/* Create new constraint */
alter table yourtable add constraint "constraint_name" FOREIGN KEY (some_id) REFERENCES yourtable(some_id) on delete cascade;Postgres: Create Column add constraint to the column with Query Output
ALTER TABLE customers
ADD COLUMN contact_name VARCHAR NOT NULL;Copyright © 2021 Codeinu
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