On Wed, 22 Apr 2015 09:00:18 +0000 (UTC), "Vishal Tiwari [email protected] [firebird-support]" <[email protected]> wrote: > Is there no Alter like SQL available ?
There is, but it doesn't support conversion from (VAR)CHAR to INTEGER. The conversion isn't done at ALTER time, but when the field is queried or updated. This means that Firebird cannot ensure that current values are convertible to INTEGER, and therefor the conversion is not allowed. Mark
