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  • mysql 分组排序并加序号

    mysql 分组排序并加序号。

    1.需要在已分好组的数据外,嵌套一层查询。这层查询只用来做小组的编号,或者是order by,序号生成是在Order by 之后(这点很重要)。

    2.加上绿色背景部分

    3.相同的package_item_id,进行小组排序。

    SELECT 
     @r:= CASE WHEN @rank=te.package_item_id THEN @r+1 ELSE 1 END AS quoteRanking,
    		@rank:=te.package_item_id AS TYPE,
    		te.* FROM (
      SELECT 
    
        pqi.item_Name itemName,
        pqi.`package_item_id`,
        pt.bidder_Name_Cn bidderName,
        pt.`bidder_id`,
        ROUND(MAX( pqi.unit_Price_Taxed), 2) quotePrice,
        DATE_FORMAT(
          pqi.create_Time,
          '%Y-%m-%d %H:%i:%s'
        ) quoteTime,
        pqi.price_Unit priceUnit,
        pqi.price_Currency priceCurrency 
      FROM
        ptb_quote pt,
        ptb_quote_item pqi 
      WHERE pt.id = pqi.quote_id 
        AND pt.package_id = '10937' 
        AND pqi.unit_Price_Taxed IS NOT NULL 
        AND pt.is_Deleted = '0' 
        AND pqi.is_Deleted = '0'
    GROUP BY pqi.package_item_id,
      pt.bidder_id 
    ORDER BY pqi.package_item_id,
      pqi.unit_Price_Taxed DESC ) te,(SELECT @r:=0 ,@rank:='') b
      ORDER BY te.package_item_id,
      te.quotePrice DESC   
    

      效果图

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  • 原文地址:https://www.cnblogs.com/zhanglixuan/p/10651275.html
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