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SQL repair duplicate data

2022-07-29 05:51:00 【Liaoshengping】

Look for duplicate data

SELECT
	*
FROM
	coupon_order
WHERE
	supplier_order_sn IN (
		SELECT
			supplier_order_sn
		FROM
			coupon_order
		GROUP BY
			supplier_order_sn
		HAVING
			count(supplier_order_sn) > 1
	)

Repair （ take id minimum value ） Duplicate data ：

SELECT
	*
FROM
	coupon_order
WHERE
	supplier_order_sn IN (
		SELECT
			supplier_order_sn
		FROM
			coupon_order
		GROUP BY
			supplier_order_sn
		HAVING
			count(supplier_order_sn) > 1
	)

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