How to fix the Oracle error ORA-22807: cannot resolve to a scalar type or a collection type?

In this post, you’ll learn more about the Oracle ErrorORA-22807: cannot resolve to a scalar type or a collection type with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-22807: cannot resolve to a scalar type or a collection type

Reason for the Error ORA-22807: cannot resolve to a scalar type or a collection type

Invalid use of a non-scalar (for example, object type) item.

How to fix the Error ORA-22807: cannot resolve to a scalar type or a collection type ?

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

Change the item’s data type and retry the operation.