5.3.3 or below
Unable to connect to the client.
This error occurs if the character sets for Altibase and the client differ.
Set the NLS value of the client to the same value as the Altibase server. You can also set the character set by using the environmental variable called ALTIBASE_NLS_USE from iSQL.
1. Check the Character Set
(NLS_USE : Client Character Set, NLS_CHARACTERSET : DB Character Set)
2. How to set the environmental variables
Execute the following command from the client shell.