Hey i'm kind new in Stored procs, i have procedure like
ALTER procedure [dbo].[list_of_employee]
(
  @employee_id int
 )
 as 
begin 
select *from project_employee_rel PE
inner join employee_details E on E.employee_id=PE.employee_id
inner join project_details P on P.project_id=PE.project_id 
where PE.employee_id=@employee_id
select * from employee_details 
where employee_id=@employee_id
end 
It returns two results separately I want result like 'if first query returns empty rows or null then second query get executed otherwise not Plz help me thanks in advance