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我的問題是關於如何在hql查詢後解決「返回重複記錄」問題。這裏是一個例子:HQL查詢返回重複記錄
SELECT t0 FROM table0 t0, table1 t1, table2 t2 WHERE
(((t0.a = 1 AND t0.b = 2 AND t0.c = 3) AND (t1.a = 4 AND t1.b = 5 AND t1.c = 6))
OR
((t0.a = 7 AND t0.b = 8 AND t0.c = 9) AND (t1.a = 10 AND t1.b = 11 AND t1.c = 12) AND (t2.a = 13 AND t2.b = 14 AND t2.c = 15))
這個查詢返回我正確的記錄,但是有些記錄返回多次。我想我知道原因。在「OR」之前(「WHERE」和「OR」之間),「table2 t2」沒有被使用。 我如何避免重複記錄?
謝謝