错两行
select lag(name,-2,'乱七八糟的空替换字符串') over(order by id) as las,* from sgdd
错行更新当前字段的值
update sgdd set name=z.las from(select lag(name,-2,'乱七八糟的空替换字符串') over(order by id) as las,* from sgdd) z where z.id=sgdd.id
这个语句之宝贵啊
我搜了好久才回忆起来
PGSQL 错行，上下行，前后行计算
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转载自blog.csdn.net/ccagy/article/details/108223020
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