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Database / Snowflake Interview Questions

What is the difference between Snowflake Standard, Enterprise, Business Critical, and Virtual Private Snowflake edition?

Snowflake offers four service editions, each a strict superset of the previous. Edition choice is driven primarily by compliance requirements, data sensitivity, and advanced concurrency needs.

Snowflake Edition Feature Matrix
FeatureStandardEnterpriseBusiness CriticalVPS
Multi-cluster warehousesNoYesYesYes
Time Travel retentionUp to 1 dayUp to 90 daysUp to 90 daysUp to 90 days
Materialized ViewsNoYesYesYes
Column/row security policiesNoYesYesYes
HIPAA / PCI DSS complianceNoNoYesYes
Tri-Secret Secure (CMK)NoNoYes (add-on)Yes
AWS PrivateLink / Azure PLNoNoYesYes
Dedicated hardware isolationNoNoNoYes
Account failover/failbackNoNoYesYes

Virtual Private Snowflake (VPS) runs on dedicated hardware fully isolated from all other Snowflake customers. It targets financial institutions and government agencies requiring hardware-level isolation and customer-managed encryption throughout the entire environment.

Which is the minimum Snowflake edition that enables multi-cluster warehouses?
A healthcare organization needing HIPAA compliance and customer-managed encryption keys requires at minimum which edition?

More Related questions...

What is Snowflake and how does its multi-cluster, shared-data architecture differ from traditional data warehouses? What are the three layers of Snowflake's architecture (Storage, Compute, Cloud Services) and what does each do? What is a Virtual Warehouse in Snowflake and how does it scale independently of storage? What is the difference between Snowflake's columnar storage and row-based storage in traditional RDBMS? What is the Snowflake Cloud Services layer and what components does it manage? What are micro-partitions in Snowflake and how do they enable automatic data clustering? What is data clustering in Snowflake and when should you define a clustering key? What is the difference between Snowflake Standard, Enterprise, Business Critical, and Virtual Private Snowflake edition? How does Snowflake handle multi-cloud deployment and cross-cloud replication? What is Snowflake's separation of compute from storage and what billing advantages does it provide? What are the stages in Snowflake (internal vs external) and how do you use them for data loading? How does the COPY INTO command work and what file formats does it support? What is Snowpipe and how does it enable continuous / serverless data ingestion? What is the difference between bulk loading with COPY INTO and micro-batch loading with Snowpipe? How does Snowflake handle semi-structured data (JSON, Avro, Parquet, ORC) with the VARIANT type? What are Snowflake Dynamic Tables and how do they differ from regular tables and views? What is Time Travel in Snowflake and how does it work (retention period, UNDROP, AT/BEFORE)? What is Fail-safe in Snowflake and how does it differ from Time Travel? What is the Snowflake Query Profile and how do you use it to diagnose slow queries? What is result caching in Snowflake and under what conditions does it apply? What is the metadata cache (Cloud Services layer cache) and how does it speed up queries? What is a clustering key and how does it reduce partition pruning cost for large tables? What are Snowflake Materialized Views and when should you use them over regular views? What is the difference between a Snowflake View, Materialized View, and Dynamic Table? How do you optimize query performance in Snowflake (warehouse sizing, clustering, pruning, result cache)? What are Snowflake Streams and how do they implement Change Data Capture (CDC)? What are Snowflake Tasks and how do you schedule SQL transformations with them? How does Snowflake implement Role-Based Access Control (RBAC) and what are the system-defined roles? What is column-level security in Snowflake (Dynamic Data Masking and Column-level Security policies)? What is Row Access Policy in Snowflake and how does it implement row-level security? How does Snowflake encrypt data at rest and in transit? What is Snowflake's Tri-Secret Secure model and when is it used? What are Snowflake Object Tags and Data Classification and how do they support governance? What is the Snowflake Access History feature and how does it support audit and compliance? What is Snowflake Secure Data Sharing and how does it work without copying data? What is the Snowflake Data Marketplace and what types of data products are available? What are Snowflake Data Clean Rooms and what privacy problems do they solve? What is Snowpark and how does it allow Python/Java/Scala code to run inside Snowflake? What are Snowflake Native Apps and how does the Native App Framework work? What are Snowflake External Tables and when would you use them over internal tables? What is Snowflake's multi-cluster warehouse and how does it handle concurrency auto-scaling? What is Resource Monitor in Snowflake and how do you use it to control credit consumption? How does Snowflake support ELT patterns and how does it compare to ETL? What are common Snowflake anti-patterns and performance pitfalls to avoid? How does Snowflake compare to BigQuery and Redshift in architecture and pricing model?
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