System.Data.dll with Xamarin Forms

Hi mates,

I have the part of the model in the PCL project and I'm using SQLite. In addition, I have two projects more (iOS and Android).

I'm trying to use the System.Data.SqlDbType but my xamarin project does not find the system.data namespace.

Do I have to add any reference more? In affirmative case, where can i download the file?

Thanks a lot in advance!