How to fix the Oracle error ORA-01752: cannot delete from view without exactly one key-preserved table?

In this post, you’ll learn more about the Oracle ErrorORA-01752: cannot delete from view without exactly one key-preserved table with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01752: cannot delete from view without exactly one key-preserved table

Reason for the Error ORA-01752: cannot delete from view without exactly one key-preserved table

The deleted table had

– no key-preserved tables,

– more than one key-preserved table, or

– the key-preserved table was an unmerged view.

How to fix the Error ORA-01752: cannot delete from view without exactly one key-preserved table ?

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

Redefine the view or delete it from the underlying base tables.