How to update the parameters in already existing schedules from backend

Hi Experts,

Currently I'm working on BO XIR2 and crystal reports XI R2. We have almost 200 reports in the environment which are scheduled.

Recently we have upgraded our oracle database. Now I have pointed the reports to the new database and updated with new oracle ID and passwords in the reports. Now the reports are running fine but the schedules are failing with below error.

Data\procSched\xxx.xxx.xx.xxx.com.jobserver\~tmp822c81cbf55bff13.rpt: Unable to connect: incorrect log on parameters. Details: [Database Vendor Code: 1005 ]

I went to that folder in the server but was unable to fine a file named ~tmp822c81cbf55bff13.rpt and the folder is actually blank.

So can any one suggest me how to update parameters of schedules in back end. If not, what can be done next. Read many sites and blogs and dint find a satisfying answer.

Thanks in advance,

Samrat Muddasani