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CREATE TABLE employees ( emp_id INT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY, first_name VARCHAR(50) NOT NULL, last_name VARCHAR(50) NOT NULL, age INT CHECK (age > 18), salary DECIMAL(10,2), hire_date DATE DEFAULT CURRENT_DATE ); INSERT INTO employees (first_name, last_name, age, salary) VALUES ('Ali', 'Hassan', 30, 50000); select * from employees;

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