ORA-30751
cannot disable column column from storing objects of type schema.name
- column: The column name.
- schema: The schema of the type.
- name: The type name.
Cause
An attempt is being made to disable a type from being stored in a substitutable column or table, but the column was enabled to store one or more of the subtypes of the type being disabled.
Action
Disable the subtypes first and then disable the supertype.
ORA-30751
cannot disable column string from storing objects of type string.string
Cause
The user is trying to drop a type from being stored in a substitutable column or table. This error is raised due to one of the following reasons :
- the column is enabled to store instances of some subtype of the type being dropped.
- the column is enabled to store instances of only one type
Action
Fix the cause of the error and retry the operation.
ORA-30751
cannot disable column string from storing objects of type string.string
Cause
The user is trying to drop a type from being stored in a substitutable column or table. This error is raised due to one of the following reasons :
- the column is enabled to store instances of some subtype of the type being dropped.
- the column is enabled to store instances of only one type
Action
Fix the cause of the error and retry the operation.
