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Developer-C 11.1
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CREATE TABLE table1 ( `ID` VARCHAR(100), `Val` VARCHAR(100), `Val2` VARCHAR(100), `Val3` VARCHAR(100) );
INSERT INTO table1 (`ID`, `Val`, `Val2`, `Val3`) VALUES ('1','100','200','90'), ('2','100','200','10'), ('3','100','200','20'), ('4','20','100','55'), ('5','20','100','10'), ('6','112','100','20'), ('7','112','100','20'), ('8','90','200','90'), ('9','30','90','180'), ('10','30','90','29');
SELECT t1.* FROM table1 t1 WHERE EXISTS ( SELECT 1 FROM table1 WHERE ID <> t1.ID AND Val = t1.Val AND Val2 = t1.Val2 ) AND NOT EXISTS ( SELECT 1 FROM table1 WHERE Val = t1.Val AND Val2 = t1.Val2 AND Val3 IN ( SELECT Val3 FROM table1 GROUP BY Val3 HAVING count( * ) > 1 ) )
ID
Val
Val2
Val3
9
30
90
180
10
30
90
29