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-- Create the table CREATE TABLE employees ( id INT PRIMARY KEY, name VARCHAR(50), manager_id INT NULL ); -- Insert data into the table INSERT INTO employees (id, name, manager_id) VALUES (1, 'Alice', NULL), (2, 'Bob', 1), (3, 'Charlie', 2), (4, 'David', 2), (5, 'Eve', 3), (6, 'Frank', 3), (7, 'Grace', 4); select * from employees e full outer join employees f on e.id=1 or e.id%2<>0 and e.id%2=0;

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