In Dr. Sum Ver. 5.0 some reserved words are added. if these words are used in any objects in your database, conversion to Dr. Sum Ver. 5.0 will end up with SQL syntax error. If you plan to convert your database in Dr. Sum EA 4.2 (or earlier) to Ver. 5.0, please make sure these words are not used in any objects. We've provided a reserved word checker to detect the reserved words. Please contact us if you are planning the conversion.