Hi Ravi,
That's how I realized it right now. I hoped that it will be possible because I have about 20 different values I'm entering in Param_1 as an action_type and depending on that the other params are required and I wouldn't like to "fullfil" the unused parameters with ''.
I now it from other databases (e.g. M$) that the parameters can be defined as optional or with default values.
Regards,
Marcus