It seems so easy for you. Thank you, that's work perfectly !

Thanks Lowell! Actually it generate the statement very-well. I was looking for a code that directly give me the desired dataset, is there a way to execute a string directly...

Thanks, Sometime I juste need a little help and you did it !

Thank you guys and thank you Lynn for making me discover the coalesce function ! It works perfectly now.

Julien

Yes , I had seen that my first edit of the post was not the best, so I changed it. Let me know if it's still unclear for you now....

Thanks Mike and thanks Lynn, you are both right. Thus it's the way I was calling the stored procedure that was wrong

Julien