Database / LanceDB Interview questions
How do you connect to a LanceDB database?
Connecting to a LanceDB database means calling lancedb.connect() (or its async equivalent) with a URI pointing at where the database's tables should live — a local directory, a cloud object storage path, or a LanceDB Cloud connection string.
import lancedb # Local filesystem db = lancedb.connect("./my_lancedb") # Cloud object storage db = lancedb.connect("s3://my-bucket/my-lancedb") # LanceDB Cloud db = lancedb.connect( uri="db://my-database", api_key="sk_...", region="us-east-1" )
Once connected, the returned database object is used to create new tables, open existing ones by name, or list all tables currently in that database — the connection itself is lightweight, since LanceDB doesn't require an ongoing server-side session the way a traditional client-server database connection does.
For the local and object-storage cases, "connecting" doesn't spin up any separate process; it simply prepares the client library to read and write Lance-format files at that location directly, which is consistent with LanceDB's embedded, serverless design.
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