Consistency

Hi! To explore how the database enforces rules that maintain valid data states, particularly ensuring that account balances never become negative. first create a table account, CREATE TABLE accounts (id SERIAL PRIMARY KEY,name TEXT NOT NULL,balance INT NOT NULL CHECK (balance >= 0),last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP); the table contains atributes id as primary key,name,balance hee check for condition as if balance >=0,last_updated here set default value as current timestamp. Next,i