Hi ANdrei -
The Couchbase .NET SDK’s developer preview’s N1QL support is limited to the N1QL tutorial database, which is looking at http://localhost:8093/. This will change shortly and should be integrated into Couchbase Server by GA in late September of this year.
To try it out, install the N1QL DP3 and then start the tutorial:
Step 1. Expand the package archive
Step 2. Run ./start_tutorial.sh (On Windows start_tutorial.bat)
Once you do this, you should be able to run N1Ql queries against the tutorial database using one of the .NET SDK DP’s.
Hope this helps,
Jeff