What you might have heard is that you could write an external(!) UDF
(witten in C, ..)
which can then have a CALL statement in it.
CALL in trigger and SQL UDF is on our ToDo list.

I am curious: Why do you need a UDF with MODIFIES SQL DATA in it?

Cheers
Serge

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Serge Rielau
DB2 UDB SQL Compiler Development
IBM Software Lab, Toronto

Visit DB2 Developer Domain at
[url]http://www7b.software.ibm.com/dmdd/[/url]