No, but I solved the problem. due to Report schema there is a securty right error.

when i created sp B by owner dbo. Script and sp have same resulsets.

I found this message in ErrorLog file.

"2007-09-10 09:05:34.76 spid14s 1 transactions rolled forward in database 'msdb' (4). This is an informational message only. No user action is required.

2007-09-10 09:05:34.84 spid4s...