Datasets: A bunch of datasets that when added will show up under Data -> Linked -> Azure Blob Storage. You can then choose an action (via “…” next to any of the containers in the dataset) and choose New SQL script -> Select TOP 100 rows to examine the data as well as choose “New notebook” to load the data into a Spark dataframe. Any dataset you add is a linked service to files in a blob storage container using SAS authentication. You can also create an external table in a SQL on-demand pool or SQL provisioned pool to each dataset via an action (via “…” next to “External tables” under the database, then New SQL script -> New external table) and then query it or insert the data into a SQL provisioned database
Click through to learn more, as well as a few other things you can do with Synapse Analytics.