I\'ve installed Visual Studio 2015, but the ssdt features are missing as you can see below
I checked the ssdt option at the setup, and the only thing i did
Here is a download location : https://msdn.microsoft.com/en-us/library/mt204009.aspx
You can try installing SSDT for Visual Studio 2015 https://msdn.microsoft.com/en-AU/mt186501
Note that it mentions that it supports Visual Studio 2015 Express and I notice you have the Community edition, so hopefully Community edition is supported as well.
Link provided allows downloading SSDT_14.0.50730.0
It did not help me.
This link https://msdn.microsoft.com/he-il/mt429383 You can download SSDT_14.0.51215.0 SQL Server Data Tools in Visual Studio Preview 2015
That solved the problem.
Could you try repairing SSDT from the Control Panel\Programs\Programs and Features Right clicking Microsoft Sql Server Data Tools Click repair