How to fix the Oracle error SQL*Loader-00473: nesting of collections is not allowed.?

In this post, you’ll learn more about the Oracle ErrorSQL*Loader-00473: nesting of collections is not allowed. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

SQL*Loader-00473: nesting of collections is not allowed.

Reason for the Error SQL*Loader-00473: nesting of collections is not allowed.

Nesting of one collection type field description within another is not allowed.

How to fix the Error SQL*Loader-00473: nesting of collections is not allowed. ?

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

Verify that collection nesting is attempted in the SQL*Loader control file. Correct the mistake.