SQL query for the below scenario
eg: Employee table has 10 rows
The TempEmployee table has 5 rows
TempEmp table should compare with the employee table and insert rows that are not present in the TempEmp
select emp.no, emp.name from dbo.Employee emp
left join dbo.TempEmp temp on temp.no =emp.no
where emp.no is not null and ltrim(rtrim(emp.no))