How to fix the Oracle error ORA-01417: a table may be outer joined to at most one other table?

In this post, you’ll learn more about the Oracle ErrorORA-01417: a table may be outer joined to at most one other table with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01417: a table may be outer joined to at most one other table

Reason for the Error ORA-01417: a table may be outer joined to at most one other table

a.b (+) = b.b and a.c (+) = c.c is not allowed

How to fix the Error ORA-01417: a table may be outer joined to at most one other table ?

You can fix this error in Oracle by following the below steps

Check that this is really what you want, then join b and c first in a view.