CONDDATE < TO_DATE('1999', 'YYYY')) A
                  
                  
                  LEFT JOIN
                  
                  
                  (SELECT * FROM TABLE
                  
                  
                  WHERE 
                  
                  
                  CONDDATE > TO_DATE('1999', 'YYYY')) B
                  
                  
                  ON A.ID=B.ID;
                  
                  
                  ?
                  
                  
                
I tried this and it worked. I really have to set up my own Oracle DB instance. There's only so much of what sqlfiddle can take with my bombarded queries
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