Can a SQL standard database be converted from 3 digit to 2 digit suffix?

We have a legacy standard database that is set as a 3 digit phase code suffix, example 03000.000.  We would like to convert it to a 2 digit suffix, example: 030000.00.  I tried to merge a 2 digit and 3 digit but the merge routine rejected the operation; it does not have a conversion function.

Question: Is there a process to convert a database from 3 to 2 digit phase code suffix?