How to fix the Oracle error ORA-22859: invalid modification of columns?

In this post, you’ll learn more about the Oracle ErrorORA-22859: invalid modification of columns with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-22859: invalid modification of columns

Reason for the Error ORA-22859: invalid modification of columns

An attempt was made to modify an object, REF, VARRAY, nested table, or LOB column type.

How to fix the Error ORA-22859: invalid modification of columns ?

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

Create a new column of the desired type and copy the current column data to the new type using the appropriate type constructor.