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  • [技术备案]SqlSever字符串行列转换

    第一步:

    设计表格MaxMin,结构如下:

    里面填满了测试数据:

    第二步:

    写测试代码:

    select PlayerSID,
    max(case RaterName when 'pw01' then MaxSign1+MinSign1+MaxSign2+MinSign2  else '' end) as 'pw01',
    max(case RaterName when 'pw02' then MaxSign1+MinSign1+MaxSign2+MinSign2  else '' end) as 'pw02',
    max(case RaterName when 'pw03' then MaxSign1+MinSign1+MaxSign2+MinSign2  else '' end) as 'pw03',
    max(case RaterName when 'pw04' then MaxSign1+MinSign1+MaxSign2+MinSign2  else '' end) as 'pw04',
    max(case RaterName when 'pw05' then MaxSign1+MinSign1+MaxSign2+MinSign2  else '' end) as 'pw05'
    FROM  MaxMin
    group by PlayerSID

    最新效果:

    技术切记:

    表格数据初始为Null时,会出现异常。初始化,为空时,初始化为空字符串 ''

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  • 原文地址:https://www.cnblogs.com/exesoft/p/13215275.html
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