Sigma sits atop your existing cloud database, using a secure connection to query your data warehouse directly. Sigma writes a query to access the data needed to answer your question and returns the result in the browser – we never store any data at rest.
Sigma provides a single point-of-access for your data, so you can establish robust data governance and keep report sprawl to a minimum and access to sensitive information restricted. Administrators can set permissions by team and namespace, and can restrict data access directly from the database as well.
Sigma uses Google Cloud Platform to offer industry-standard security, availability, and durability.