Nov 5, 2025 · Delta Lake is the optimized storage layer that provides the foundation for tables in a lakehouse on Databricks. Delta Lake is open source software that extends Parquet data files …

Sep 11, 2025 · This article provides an overview of how you can partition tables on Azure Databricks and specific recommendations around when you should use partitioning for tables …

Mar 29, 2025 · This article provides an overview of Delta Lake protocols, table features, and compatibility with Delta Lake clients for reads and writes. The transaction log for a Delta table …

When there is a matching row in both tables, Delta Lake updates the data column using the given expression. When there is no matching row, Delta Lake adds a new row.

Review and navigate Delta Lake table versions using table history and time travel commands.

Jun 11, 2025 · Delta Lake is an open source storage layer that brings reliability to data lakes. Delta Lake provides ACID transactions, scalable metadata handling, and unifies streaming …

Add and remove partitions: Delta Lake automatically tracks the set of partitions present in a table and updates the list as data is added or removed. As a result, there is no need to run ALTER …

Nov 5, 2025 · Azure Databricks combines the power of Apache Spark with Delta and custom tools to provide an unrivaled ETL experience. Use SQL, Python, and Scala to compose ETL logic …

Nov 25, 2025 · Building a data warehouse inside your lakehouse allows you to bring all your data into a single system and take advantage of features such as Unity Catalog and Delta Lake.

Nov 15, 2024 · What is Delta Lake? Delta Lake is an open-source storage layer that brings ACID (atomicity, consistency, isolation, and durability) transactions to Apache Spark and big data …