首页 > 数据库> 文章详细

Oracle中行转列（pivot）函数解析（二）

2022-09-04 19:32:08 阅读：234 来源： 互联网

标签：fee xmdm sum xmje decode 转列 sl Oracle pivot

Oracle行转列就是把某一个字段的值作为唯一值，然后另外一个字段的行值转换成它的列值。

案例原始数据如下：

方法一：利用group by实现

select t.mr_sl_id,
       sum(decode(xmdm, '01', t.xmje, 0)) 床位费,
       sum(decode(xmdm, '02', t.xmje, 0)) 诊察费,
       sum(decode(xmdm, '03', t.xmje, 0)) 检查费,
       sum(decode(xmdm, '04', t.xmje, 0)) 化验费,
       sum(decode(xmdm, '05', t.xmje, 0)) 治疗费,
       sum(decode(xmdm, '06', t.xmje, 0)) 手术费,
       sum(decode(xmdm, '07', t.xmje, 0)) 护理费,
       sum(decode(xmdm, '08', t.xmje, 0)) 卫生材料费,
       sum(decode(xmdm, '09', t.xmje, 0)) 西药费,
       sum(decode(xmdm, '10', t.xmje, 0)) 中药饮片费,
       sum(decode(xmdm, '11', t.xmje, 0)) 中成药费,
       sum(decode(xmdm, '12', t.xmje, 0)) 一般诊疗费,
       sum(decode(xmdm, '13', t.xmje, 0)) 挂号费,
       sum(decode(xmdm, '14', t.xmje, 0)) 其他费
  from hos_drgs.sl_charge t
 where t.mr_sl_id = 'ZY110000557222'
 group by t. mr_sl_id

View Code

方法二：Oracle11g之后提供了自带函数PIVOT可以完美解决这个行转列的需求，具体语法结构如下：

select *
   from (数据查询集)
 pivot
 (
        sum(xmje /*行转列后 列的值*/
        for xmdm /*需要行转列的列*/
        in(转换后列的值))
 )

View Code

select *
  from (select mr_sl_id, xmdm, sum(xmje) fee
          from hos_drgs.sl_charge
         where mr_sl_id = 'ZY110000557222'
         group by mr_sl_id, xmdm)
pivot(sum(fee)
   for xmdm in('01' as bed_fee,
               '02' as consultation_fee,
               '03' as inspection_fee,
               '04' as assay_fee,
               '05' as treatment_fee,
               '06' as operation_fee,
               '07' as nursing_fee,
               '08' as sanitary_material_fee,
               '09' as western_medicine_fee,
               '10' as cn_medicine_pieces_fee,
               '11' as cn_patent_medicine_fee,
               '12' as general_medical_fee,
               '13' as regist_fee,
               '14' as other_fee))

View Code

参考博客：https://blog.csdn.net/langweixiana/article/details/116011508

标签：fee,xmdm,sum,xmje,decode,转列,sl,Oracle,pivot
来源： https://www.cnblogs.com/daytoy105/p/16655746.html

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。

ICode9

Oracle中行转列（pivot）函数解析（二）