if, during installation of Sql Server 2008 you have this error : Performance counter registry hive consistency check failed
Open a command prompt with administrator user rights (Run as Administrator)
Restart the system and try again to install sqlserver
SSIS and SSDT on SQL SERVER 2014
SSIS is not present on Sql Server 2014. To create Integration Service packages, you must download and install SQL Server Data Tools (SSDT).
You will also use this tool to convert SSIS packages created with Sql Server 2008 into the new project format.
Connect to Oracle from SSDT on SQL SERVER 2014
To connect to Oracle through ADO.NET in the SSDT environment, you must install an Oracle client. You’re definitely working on a 64-bit machine. You must download the 32-bit client and install it by choosing the “Administrative” installation type.