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- SELECT B.* FROM BOOK B WHERE B.AID IN (SELECT AID FROM BOOK WHERE TITLE LIKE '%?%');
- SELECT B1.* FROM BOOK B1 , BOOK B2 WHERE B1.AID = B2.AID AND B2.TITLE LIKE '%?%';
- SELECT B1.* FROM BOOK B1 LEFT OUTER JOIN BOOK B2 ON B1.AID = B2.AID WHERE B2.TITLE LIKE '%?%';
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