thinQmaster Virtual testing partner Adaptive practice exams that find your weak spots and drill them. Every answer explained. From $69
Enroll

thinQmaster

Find your exam

Five questions free, before you decide.

Step 1 · choose a vendor

In one of our camps? Your practice exams come with the tuition — they are on your study page already.

Data & Analytics · Intermediate

Unity Catalog (UC)

Databricks' unified governance layer for data and AI assets, providing centralized access control, auditing, lineage and discovery across workspaces.

Definition

Unity Catalog uses a metastore per region, a catalog.schema.object namespace, ANSI SQL GRANTs, row filters and column masks, automatic column-level lineage and system tables. It governs tables, views, volumes, functions and models, and it was open-sourced in 2024.

Example

GRANT SELECT ON TABLE main.sales.orders TO `analysts`;

Exam tip

Unity Catalog governs across workspaces at account level; the legacy Hive metastore was per workspace.

Related terms