SSRS Integration in Sharepoint 2010

Report Server Installation
http://mosshowto.blogspot.com/2009/03/reporting-services-sharepoint-multiple.html
Report Server DB Mode change from Native to Sharepoint Integrated
http://dereksan.blogspot.com/2011/01/how-to-switch-from-ssrs-native-mode-to.html

Error :
The report server instance is not configured correctly. Please use the Reporting Services Configuration tool to create a report server database in SharePoint integrated mode before setting integration options for this SharePoint Web application.
Answer :
Design SSRS Report using Sharepoint
http://dereksan.blogspot.com/2011/01/how-to-switch-from-ssrs-native-mode-to.html

Error :
The path of the item is not valid. The full path must be less than 260 characters long; other restrictions apply. If the report server is in native mode, the path must start with slash.
Answer :
We cannot create or design report using VS for Sharepoint Integrated mode database. We need to confige and use SP 2010 to develop reports.
http://fendy-huang.blogspot.com/2011/02/create-ssrs-report-with-sharepoint-2010.html

Add SSRS Report in Report viewer web
http://technet.microsoft.com/en-us/library/bb326362.aspx

Connect Filter or Documents Web Part (Reporting Services in SharePoint Integrated Mode)
http://technet.microsoft.com/en-us/library/bb283248.aspx

Adding Parameters to Create a List of Available Values (SSRS)
http://msdn.microsoft.com/en-us/library/aa337400.aspx