When you are upserting a row (PostgreSQL >= 9.5), and you want the possible INSERT to be exactly the same as the possible UPDATE, you can write it like this:
INSERT INTO tablename (id, username, password, level, email)
VALUES (1, 'John', 'qwerty', 5, '[email protected]')
ON CONFLICT (id) DO UPDATE SET
id=EXCLUDED.id, username=EXCLUDED.username,
password=EXCLUDED.password, level=EXCLUDED.level,email=EXCLUDED.email
Is there a shorter way? To just say: use all the EXCLUDE values.
In SQLite I used to do :
INSERT OR REPLACE INTO tablename (id, user, password, level, email)
VALUES (1, 'John', 'qwerty', 5, '[email protected]')
This question is related to
postgresql
upsert
postgresql-9.5
Postgres hasn't implemented an equivalent to INSERT OR REPLACE. From the ON CONFLICT docs (emphasis mine):
It can be either DO NOTHING, or a DO UPDATE clause specifying the exact details of the UPDATE action to be performed in case of a conflict.
Though it doesn't give you shorthand for replacement, ON CONFLICT DO UPDATE applies more generally, since it lets you set new values based on preexisting data. For example:
INSERT INTO users (id, level)
VALUES (1, 0)
ON CONFLICT (id) DO UPDATE
SET level = users.level + 1;
Source: Stackoverflow.com