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SELECT IFNULL(SUM(duck_weight), 0) AS duckWeight, DATE_FORMAT(call_date, "%Y-%m-%d") AS call_date,duck_num
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SELECT IFNULL(SUM(duck_weight), 0) AS duckWeight, DATE_FORMAT(call_date, "%Y-%m-%d") AS call_date,duck_num
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GROUP BY DATE_FORMAT(call_date, "%Y-%m-%d")
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GROUP BY DATE_FORMAT(call_date, "%Y-%m-%d")
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