i want to change the charset of an existing database from none to utf8, it seems that the safest way is to create a new one then pump data to it .
i have tried two methods both gave me the same error . 1 - recreate a new database with utf8 charset , then create a simple stored procedure to pump data via "execute block on external datasource" 2 - use fbclone with this command line fbclone -l fbembed.dll -v -s source.gdb -t destination.gdb -u SYSDBA -p masterkey -tc UTF8 -wc UTF8 both gave me mailformed string error, and a most of rows were not copied to the destination database... exemple verbose error Incompatible column/host variable data type GDS Code: 335544569 - SQL Code: -303 - Error Code: 249 fields values --- VANUM = 244458 RUBNUM = 5054 VALEUR = Absence de germes pathogènes. ATBANA = DATEMODIF = 16/05/2018 any help is welcome thanks