What is Delta Live Tables

Definition

Delta Live Tables is a framework for building reliable data pipelines declaratively, where engineers define the desired transformations and data-quality expectations and the system manages execution, dependencies, error handling, and incremental processing automatically.

« Back to Glossary Index

Lets engineers declare transformations while the framework handles execution
Builds in data-quality expectations that enforce or quarantine bad records
Manages dependencies and incremental processing automatically
Simplifies reliable pipeline development and maintenance

Glossary: ETL (Extract, Transform, Load)

Real World Example

A team defines a Delta Live Tables pipeline with quality rules that drop records missing an order ID, and the framework automatically orders the transformations, processes only new data, and reports quality metrics each run.

FAQs

How is Delta Live Tables declarative?

Engineers define what the tables and quality rules should be, and the framework figures out how to execute and maintain them.

What are expectations in Delta Live Tables?

Data-quality rules that validate records, allowing failing data to be tracked, dropped, or used to halt the pipeline.

What does it automate?

Dependency resolution, incremental processing, error handling, and data-quality monitoring across the pipeline.