小弟不才，请教一个查询 SQL - V2EX

小弟不才，请教一个查询 SQL - V2EX

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这是一个创建于 2597 天前的主题，其中的信息可能已经有所发展或是发生改变。

一张图片上传日志表(基于 ORACLE)，系统每天生成一个文件夹(保存当天的图片，图片不重复，有唯一 ID，记录中每 N 条数据有同一个 batch_id)，次日上传，有上传成功和失败。隔一段时间我要把上传失败的所有图片再一次上传(有成功和失败，会新增记录，图片 ID 不变，但是 batch_id 改变)，那么，如何在查询的时候剔除掉(去重)上传失败多次的重复记录

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AlkTTT

2018-10-19 15:23:05 +08:00

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