Question

I am using PostgreSQL Database. I want to get a column values from a table by excluding the values exists in another table.

select id from mytable where exclude(select id from another table)

In First table available id:

101,102,103,104,105

In second table available id:

101,104

I want result:

102,103,105 (excluded values exist in second table)

How write Query for this?

Answer 1

Try

select id
from mytable
where id not in (select id from another_table);

or

select id
from mytable
except
select id
from another_table;