https://dataframe.hr/categories/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). https://dataframe.hr/azure-synapse/index-maintenance-in-azure-sql-database/ Sat, 10 Jun 2023 00:00:00 +0200 https://dataframe.hr/azure-synapse/index-maintenance-in-azure-sql-database/ One task that is often overlooked by DBAs is automated index maintenance in Azure SQL Database. On-premises administrators may be used to the simplicity of maintenance plans, but these are not available for Azure SQL DB (for now). Luckily, Ola Hallengren has provided SQL Server Maintenance Solution under an MIT license which includes many valuable scripts related to database administration. Required objects We only need a couple of objects for index maintenance so instead of downloading the whole solution, you can focus on the following: