https://dataframe.hr/tags/azure-synapse/ Recent content in Azure Synapse on DataFrame Hugo en-us Mon, 08 Jan 2024 00:00:00 +0200 https://dataframe.hr/azure-synapse/using-delta-tables-and-schema-evolution-in-azure-synapse/ Mon, 08 Jan 2024 00:00:00 +0200 https://dataframe.hr/azure-synapse/using-delta-tables-and-schema-evolution-in-azure-synapse/ Coming from a SQL background, Delta Tables might be a perfect introduction to Data Lakehouse architecture. Delta Table at its most basic level is a collection of versioned parquet files and related metadata, commonly stored in Azure Data Lake Storage (cloud-based hard drive). The main features offered by Delta Tables include ACID support, schema enforcement and evolution, time travel (data versioning with rollbacks, audit trail), and data mutability through upsert and delete operations (supporting CDC and SCD operations).