This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.
Get a list of the old values for a given changed SDO_DataObject.
Returns a list of SDO_DAS_Settings describing the old values for
the changed properties of the SDO_DataObject.
Parameters
data_object
The data object which has been changed.
Return Values
A list of SDO_DAS_Settings describing the old values for the
changed properties of the SDO_DataObject.
If the change type is SDO_DAS_ChangeSummary::ADDITION, this
list is empty.