sql server - Is this 'tip' about the distinct function outdated? -

So, according to 2007, we should not use different as a code, I.e. not

  choose separately (employee id), salary from salaried   
 is it still true?  
  
 
 
 DISTINCT   is not   a function  
 
 
  
  
  
  
 Select  after the keyword  different  after the column expression  (employeeID)  .  
 To make things more clear, the following three things are the same:  
 
  Choose different employee ID (pay)   
  
           Li> 
 Select  employee id  and  (employee id)  the same thing: a reference to the column.