How REPLACE TRANSFORM Differs From CREATE TRANSFORM
The following rules and behaviors differentiate the REPLACE TRANSFORM and CREATE TRANSFORM
If you specify REPLACE TRANSFORM, and the specified transform group exists, the system
replaces it with the new definition.
If the specified transform group does not exist and the associated UDT does not have
a defined transform group, then the system creates the specified transform group.
If the REPLACE TRANSFORM statement specifies a transform group for a UDT with which
an existing transform group is associated, the system returns an error to the requestor
because you can specify only one transform group per UDT.