unity-catalog-constraints

To enforce relational integrity in Databricks Gold layer tables, use this Skill to apply ALTER TABLE statements that define surrogate keys as PRIMARY KEYS and link fact tables to dimensions via FOREIGN KEY constraints.

Defining foreign keys inline in CREATE TABLE statements causes deployment errors in Unity Catalog because referenced primary keys may not exist yet. This Skill prevents production errors by applying constraints via ALTER TABLE patterns after table creation.

Yes, you can use Unity Catalog constraints for dimensional modeling in Databricks. This Skill standardizes PRIMARY KEYS on dimension surrogate keys and FOREIGN KEYS in fact tables to maintain star schema data consistency and enable BI tool discovery.

The best way to enforce surrogate keys as primary keys in Databricks is by applying standardized ALTER TABLE statements. This Skill provides correct patterns to enforce NOT NULL requirements and PRIMARY KEY constraints on Gold layer dimension tables.

Yes, you need NOT NULL requirements on primary keys in Unity Catalog to ensure relational data integrity. This Skill enforces NOT NULL constraints alongside PRIMARY KEY definitions for surrogate keys to prevent null dimension references in fact tables.