Databricks

Category

Data warehouses

Runs in

The Phloem cloud — nothing to install

Lets you and Hamming query a Unity Catalog through a Databricks SQL warehouse, with its tables listed in Trace.

#What Phloem reads

• Tables in every schema of the catalog — columns, types, and comments and row counts where the table has them — listed in Trace for Hamming and SQL autocomplete
• information_schema is left out

#What you need

• Your workspace hostname and the SQL warehouse's HTTP Path (from its Connection Details)
• A personal access token, or a service principal's client ID and secret for OAuth
• The Unity Catalog to read

#Connect

1. In the console, open Connectors, choose Add connector, then Databricks.
2. Under Authentication Method, choose API Key or OAuth (Service Principal).
3. Enter Host and HTTP Path.
4. In Access Token, enter the personal access token, or for OAuth the client secret plus Client ID.
5. Enter Catalog, and optionally a default Schema.
6. Choose Test Connection, then Create Connection.

#What Hamming can do

• Run SQL that you or Hamming write, on the warehouse at that HTTP Path

#Notes

• Catalog is optional on the form, but without it nothing is listed in Trace.
• A stopped warehouse can make the first test time out while it starts. Test again once it runs.
• Phloem runs any statement, not only SELECT. Use a token or service principal with read-only grants to keep the connector read-only.

#Connection fields

What the Add connector form asks for.

Updated November 6, 2026