sql - How to use "IN" operator with several columns? -

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Is this possible to query this: 

  Select from the table where * (t. key1 with multiple columns and many values ​​  
     
 
 
 You have to divide it into several statements I did not know that you want  or  or  and , so I used this code in the  AND  took:  
 <('A', 'B', 'C', 'D') and (TK2) IN ('A', 'B', 'C ('A', 'B', 'C', 'D') or 'A' Use  and inline view:  
  Join the select table (select 'one' from dual union) Select 'dual union' from 'b' Choose from dual union 'c' Select Dual from 'D') x on t.key1 = x.col and t.key2 = x.col and t.key3 = x.col

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