Thanks Sergey,

>There's 'Ingres SQL Reference Guide' at ftp://ftp.ca.com/CAproducts/ingres/docs/Ingres_20/sqlref.pdf

I downloaded the document. That was, what I was looking for and couldn't find anywhere on CA's website. Now I can be sure, that there isn't any function like CASE or IIF in Ingres SQL :( I will have to do the data conversion in my import program instead of being able to put it in the SELECT list.

Armin