Entrypoint domainfromemail compatible with UTF-8
Input CSTRING(254) eMail-String Output CSTRING(254) from eMail substituted domain
TestSQL SELECT 'adhoc-data.de' AS ISCORRECT, F_DOMAINFROMEMAIL('udf@adhoc-data.de') FROM RDB$DATABASE; SELECT NULL AS ISCORRECT, F_DOMAINFROMEMAIL(NULL) FROM RDB$DATABASE;