我对SQL还不太熟悉,我尝试做一个特定的查询,其中需要两个子查询。我必须给他们取别名,但当我这么做的时候会说:
ERROR: syntax error at or near "as"
但我看语法上没有什么问题。我在这类查询中遇到了很多问题,而且找不到太多信息或示例。你能帮我吗?
Select
...
from
turno,
(select * from
(
select
...
from
accion
where
accion.tipo = 4 or accion.tipo = 5
) as part1
union
(
select
...
from
accion
where
accion.tipo <> 4 and accion.tipo <> 5
) as part2
) as accion
where
...
;
谢谢。
最佳答案
尝试:
Select
...
from
turno,
(select * from
(
select
...
from
accion
where
accion.tipo = 4 or accion.tipo = 5
union
select
...
from
accion
where
accion.tipo <> 4 and accion.tipo <> 5
) as part1_2
) as accion
where
...
;
关于sql - PostgreSQL子查询中带有别名的语法错误,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/8435358/