1. 顯示工資漲幅，員工編號，原來的工資和增長的工資： 部門號十、50、110的有5%的漲幅， 部門號爲60的漲10%的工資部門號爲20和80漲幅爲15%，部門爲90的不漲工資

SELECT * FROM ( select 'raise 5%' raise,e.employee_id as employee_id,e.salary,e.salary*0.05 as newsalary from employees e where e.department_id in (10,50,110)) UNION ALL SELECT * FROM

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