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嗨,我的桌子看起来像这样
具有相同 S id 的行的组合称为一个族。输出应具有基于以下推导的计算层代码
输出 put 应该是 Output
我第一次使用 Stackoverflow。我需要在 db2 中进行查询,并且可以将输出用作报告。
你需要windows函数如下:
Select t.*, Concat('Tier ', count(*) over (partition by s_id) ) as tier From your_table t