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2020-12-30 14:34:34 +08:00 回复了 liquorppp 创建的主题 › MySQL › 构建 SQL 查询语句的疑问 |
select t1.*
from (select t.a,
t.b,
t.c,
row_number() over(partition by t.a order by to_number(b)) as rank
from tgxt.test_a t
where t.c is not null) t1
where rank = 1
from (select t.a,
t.b,
t.c,
row_number() over(partition by t.a order by to_number(b)) as rank
from tgxt.test_a t
where t.c is not null) t1
where rank = 1
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