select EmployeesList.*,datediff(year,EmployeesList.EmployeeEnterDate,getdate()) as 'InJobTime' from EmployeesList ---Geovin Du 塗聚文 select EmployeesList.*,datediff(month,EmployeesList.EmployeeEnterDate,getdate()) as 'InJobTime' from EmployeesList select EmployeesList.*,datediff(month,EmployeesList.EmployeeEnterDate,getdate())/12 as 'InJobTime' from EmployeesList select EmployeesList.*,datediff(month,EmployeesList.EmployeeEnterDate,getdate())%12 as 'InJobTime' from EmployeesList ---工齡計算（前面整數是看多少年，小數點後兩位是多少個月） select EmployeesList.*,datediff(month,EmployeesList.EmployeeEnterDate,getdate())/12+datediff(month,EmployeesList.EmployeeEnterDate,getdate())%12*0.01 as 'InJobTime' from EmployeesList