Probeer deze
UPDATE tablename
SET columnToCheck = REPLACE(CONVERT(columnToCheck USING ascii), '?', '')
WHERE ...
of
update tablename
set columnToCheck = replace(columnToCheck , char(146), '');
Probeer deze
UPDATE tablename
SET columnToCheck = REPLACE(CONVERT(columnToCheck USING ascii), '?', '')
WHERE ...
of
update tablename
set columnToCheck = replace(columnToCheck , char(146), '');