Azure Machine Learning datasets (preview) let data scientists and machine learning engineers apply data for ML with confidence. By creating a dataset, you create a reference to the data source location, along with a copy of its metadata. The data remains in its existing location, so no extra storage cost is incurred.

With Azure Machine Learning datasets, you can:

Keep a single copy of data in your storage referenced by datasets.
Easily access data during model training without worrying about connection string or data path.
Share data & collaborate with other users.

Learn how to use Azure Machine Learning datasets:

Create and register datasets
Use TabularDatasets in automated machine learning training
Use TabularDatasets in training
For existing Dataset users: Dataset API change notice