Install SQL Server Reporting Service 2012 in SharePoint Integrated Mode

In SharePoint mode a report server is installed as part of a SharePoint server farm. The report server processing, rendering, and management features are represented by a SharePoint application server running the Reporting Services SharePoint shared service and one or more Reporting Services service applications. A SharePoint site provides the front-end access to report server content and operations.

For more details read the MSDN Article.

Procedure for installing SQL Server Reporting Services 2012 in SharePoint Integrated Mode

• Run the SQL Server Installer
  
  
   
• Click on the installation, and then click on "New SQL Server Stand-alone Installation or add feature to an existing installation".
  
  
   
• Click "OK"
  
  
   
• Click "Next"
  
  
   
• Select "Perform a New installation"
  
  
   
• If you don't have a key then select "Evaluation", it doesn't matter because the Reporting Services Add-in is a free feature. And click "Next".
  
  
   
• Accept the license and click "Next".
  
  
   
• Select "SQL Server Feature Installation"
  
  
   
• Select "Reporting Service - SharePoint" and "Reporting Service Add-in for SharePoint Products" then click "Next".
   
• Click "Next" on a couple more screens until it reaches the Ready To Install screen.
  
  
   
• Verify the feature and click on the "Install" button of the Ready to Install Screen.
  
  
   
• Verify the Completion report and restart the Server.