319 B
319 B
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错误:select list expression not prduced by aggregation ouput(missing from GROUP BY caluse?)
1. 原因:查询时查询结果的别名与group by字句中的列名冲突,如:
select
sum(dd) as b
from
a
group by
b,
c
2. 解决方法:将查询结果中的列别名进行修改即可;