G. Nau schrieb:

> I have problems with character set usage in a IBO/FireBird 1.5=20
> system.
> Database created with default char set iso8859_1
> Every column is defined by a domain, and each (var)char domain is=20
> defined as iso8859_1.

You have to define your domain with the proper collation, e.g. in your case:

CREATE DOMAIN LASTNAME AS
VARCHAR(50) CHARACTER SET ISO8859_1
COLLATE DE_DE

Florian