ازاي اكتب جملة select علي كذا سطر من جوة الفجول بيسك
مثل هذا
create view absent AS SELECT total_emp.total_employees,atten.att,total_emp.SectorId,total_emp.total_employees - atten.att AS absentDays
FROM atten FULL OUTER JOIN total_emp ON atten.SectorId = total_emp.SectorId