Hi Zahi,
This is not the concept of a system copy or database refresh. For example, I'm not sure if you can simple transport data from a system to another without harming the target system - and it's also not specified whether you want to overwrite this data (erase the data in the target, insert new) or simple merge data. And in this case I'm considering that your 3-system landscape is running on the same support pack stack, database version, etc.
Would make sense if you want to copy a client from the production to the development system:
Client copy how to for beginners
If you simply want to refresh the development or a test system with the entire production data (and therefore database), makes more sense to perform a system copy or database refresh
If this is right, you can check the SAP Note 151603 - Copying a SQL Server Database
You might want to check also the system copy guides under the following site: Service Marketplace - Installation & Upgrade Guides
Best Regards,
Luis Darui
SAP Active Global Support
SAP on Microsoft Platforms
-> http://scn.sap.com/community/sqlserver