Stack Overflow Asked by Markus on February 20, 2021
it’s just an example, my real tables are much larger and more complicated.
CREATE TABLE Apples (
Id1,
Name,
Id2,
)
CREATE TABLE Colors (
Id2,
ColorName
)
I want to include all apples instead of the green variety of ID1 = 3 (lets lay called Boscop)
How to write the WHERE clause to exclude green Boscop?
I think it’s easy but for the moment I have no idea.
Thanks!
I am guessing you want not exists
:
select a.*
from apples a
where a.id1 = 1 and
not exists (select 1
from colors c
where a.id2 = c.id2 and c.color = 'green'
);
Answered by Gordon Linoff on February 20, 2021
One simple method is as below. Select the relevant rows from the table instead of selecting all. Hope this helped.
select * from Colors t1 ,Apples t2 where t1.id2=t2.id2(+) and t2.Name<>'Boscop' and t1.ColorName<>'green'
Answered by akshaivk on February 20, 2021
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