找出重复项
SELECT *
FROM orders_JH
WHERE (dingdan IN
(SELECT dingdan
FROM orders_jh
GROUP BY dingdan
HAVING COUNT(dingdan) > 1))
找出重复项
SELECT *
FROM orders_JH
WHERE (dingdan IN
(SELECT dingdan
FROM orders_jh
GROUP BY dingdan
HAVING COUNT(dingdan) > 1))
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