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CREATE TABLE USERS ( `ID` INTEGER, `NAME` VARCHAR(6), `GENDER` VARCHAR(6) ); INSERT INTO USERS (`ID`, `NAME`, `GENDER`) VALUES ('1', 'Man1', 'Male'), ('2', 'Man2', 'Male'), ('3', 'Woman1', 'Female'), ('4', 'Woman2', 'Female'); CREATE TABLE Man_Result ( `ID` INTEGER, `ID_PERSON` INTEGER, `ID_CHOOSE` INTEGER ); INSERT INTO Man_Result (`ID`, `ID_PERSON`, `ID_CHOOSE`) VALUES ('1', '1', '4'), ('2', '2', '1'); CREATE TABLE Woman_Result ( `ID` INTEGER, `ID_PERSON` INTEGER, `ID_CHOOSE` INTEGER ); INSERT INTO Woman_Result (`ID`, `ID_PERSON`, `ID_CHOOSE`) VALUES ('1', '3', '1'), ('2', '3', '2'), ('3', '4', '1');
SELECT um.NAME AS man_name, uw.NAME AS woman_name FROM Man_Result AS m JOIN Woman_Result AS w ON w.ID_CHOOSE = m.ID_PERSON AND m.ID_CHOOSE = w.ID_PERSON JOIN USERS AS um ON m.ID_PERSON = um.ID JOIN USERS AS uw ON w.ID_PERSON = uw.ID;
man_name
woman_name
Man1
Woman2