sql - Opposite of INTERSECT in Oracle -

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I have two choices and I want to add them in such a way that unique rows can be changed in both the selections. is.

I know that I can do something like this: 

 (Selection 1 union selection 2) minute (selection 1 intersection selection 2) 
 
 East > 
 But I would like to avoid it. Both the  select1  and  select2  have 20 lines, so this method will be really vague and difficult to maintain. 
 
 Post text "itemprop =" text "> 
 If you do not return any duplicate on both  select1  and  select2  Can: 
 
  SELECT * FROM (select1 UNION ALL select2) a.col1, a.col2, by a group ... Howing count (*) = 1

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