Hi Cavit,

Find a test script at
http://groups.yahoo.com/group/firebird-support/files/testcases/

Download and unzip.

Set your console to codepage 1254. Set the buffer length
long enough (1000) to catch all output.

Display the unpacked SQL script with 'type' to
verify display of Turkish character set. Dotless
small i at 253 is an easy marker.

Create a fresh database and edit the t1254.sql script
to match database name, user and password with your
actual settings.

Execute the script with:
isql -page 999 -e -i t1254.sql

At my system (this is W2K, BTW), this gives
the right result.

Regards,
Peter Jacobi