9.1 OverviewEach error code begins with the prefix MTK- followed by five digits. The first two digits denote the error class, which is a general classification of the error. The last three digits represent the specific error condition.
If there is an error reported back by a specific database server, this error message is prefixed with DB-. For example, if table creation fails due to an existing table in a Postgres database server, the error code 42P07 is returned by the database server. The specific error in the Migration Toolkit log appears as DB-42P07.