Objects You Do Not Need to Save or Restore 
Do not save or restore individual objects in the SAP database libraries R3<SID>DATA and SAP<SID>DB. Always fully save these libraries.
SAP transactions change data in many objects simultaneously. There is no easy way to obtain a complete list of all objects changed by a particular SAP transaction. This means that there is no way to save or restore individual database objects without producing inconsistencies.