How to resolve ORA-01446 Error Message in Oracle database

Learn the reason and how to resolve the ORA-01446 error message in Oracle.

Description

When you come upon an ORA-01446 error, the following error message will appear:

ORA-01446: cannot select ROWID from view with DISTINCT, GROUP BY, etc.

Cause

You tried to create a view that protected a ROWID in the SELECT statement as nicely as a clause such as DISTINCT clause or GROUP BY clause. This is now not allowed.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

Since the DISTINCT or GROUP BY reasons the records in the view to now not correspond immediately to the underlying bodily records, the ROWID values can not be returned.

Either remove the DISTINCT or GROUP BY clause,

OR

Remove the ROWID column from the the SELECT statement.