Hello Mahendranath,
I´m not sure to get your question... You have a problem when you try to refresh a webi document having no context, no prompt, right?
When you try to refresh, the operation takes too much time? how many?
You talked about sql script execution... I guess it is normal since you want to update your Webi reports with fresh data?
Last question: which version are you running?
Thanks and best regards,
ANthony