How to fix the Oracle error ORA-30754: column or table string stores objects of only one type?

In this post, you’ll learn more about the Oracle ErrorORA-30754: column or table string stores objects of only one type with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-30754: column or table string stores objects of only one type

Reason for the Error ORA-30754: column or table string stores objects of only one type

The user is trying to perform an operation that is not allowed on object column or table that is enabled to store instances of a single type.

How to fix the Error ORA-30754: column or table string stores objects of only one type ?

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

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