Hi,

my first guess would be to use I64NVL or I64NULLIF.

Martijn Tonies
InterBase Workbench - the developer tool for InterBase and Firebird
http://www.interbaseworkbench.com

Upscene Productions
http://www.upscene.com

"This is an object-oriented system.
If we change anything, the users object."

> Hi All,
> can you help me with the 'ISNULL' problem?
> I have tried the tbudf.dll where some NULL functions are in this dll.
> Suppose you have table
>
> CREATE TABLE MYTABLE (
> ...
> MYCOLUMN NUMERIC(15,2);
> ...
> )