Im new, dont Understand how to get Retrieval/retrieval agents running

[buildcity]

Hi iwant to get the retrival/retrival agents running but i dont understand the instructions for supbase. It says to paste code into my database. Where would that code go? where is the database?

[akdeb]

1. Create a supabase project
2. In that go to the SQL editor and paste the vector db instantiation code
   https://supabase.com/docs/guides/ai/examples/nextjs-vector-search?queryGroups=database-method&database-method=dashboard