PGSQL COMMELL Ejemplo de reversión
-- start a transaction
BEGIN;
-- deduct 1000 from account 1
UPDATE accounts
SET balance = balance - 1000
WHERE id = 1;
-- add 1000 to account 2
UPDATE accounts
SET balance = balance + 1000
WHERE id = 2;
-- select the data from accounts
SELECT id, name, balance
FROM accounts;
-- commit the transaction
COMMIT;
Selfish Shrew