如何在C-TreeACE SQL中使用内连接删除？

Question

我有以下查询，我需要让它在CTREESQL中工作，但直到现在都没有成功：

delete c  
from (select col1, col2,right(rtrim(col3),1) as col3 
FROM table
GROUP BY col1, col2,right(rtrim(col3),1)
having COUNT(NULLIF(ltrim(col4), '')) =1 and COUNT(*)=2)d join table c on
c.col1 = d.col1 and c.col2= d.col2 and right(rtrim(c.col3),1) = d.col3
where c.col4 is not  null and LTRIM(c.col4)<>''

以下查询适用于带连接的选择：

select c.*  
from (select col1, col2,right(rtrim(col3),1) as col3 
FROM table
GROUP BY col1, col2,right(rtrim(col3),1)
having COUNT(NULLIF(ltrim(col4), '')) =1 and COUNT(*)=2)d join table c on
c.col1 = d.col1 and c.col2= d.col2 and right(rtrim(c.col3),1) = d.col3
where c.col4 is not  null and LTRIM(c.col4)<>''

Answer 1

在周末经过长时间的斗争后，我能够让它发挥作用。

Create Table admin.dupes( col1, col2, col3 )
AS
select col1, col2,right(rtrim(col3),1) as col3 
FROM table
GROUP BY col1, col2,right(rtrim(col3),1)
having COUNT(NULLIF(ltrim(col4), '')) =1 and COUNT(*)=2

delete from table
where 
table.col4 is not  null and LTRIM(table.col4)<>''
and exists (select 1 from dupes d where table.col1 = d.col1 and table.col2= d.col2 and right(rtrim(table.col3),1) = d.col3
)

Drop Table admin.dupes

我无法使用派生表/临时表，因为两者都无效。