Every Azure Synapse Analytics workspace comes with serverless SQL pool endpoints that you can use to query data in the Azure Data Lake (Parquet, Delta Lake, delimited text formats), Cosmos DB, or Dataverse.
https://docs.microsoft.com/en-us/azure/synapse-analytics/sql/on-demand-workspace-overview
Synapse serverless SQL pool is a serverless query service that enables you to run SQL queries on files placed in Azure Storage. In this quickstart, you'll learn how to query various types of files using serverless SQL pool. Supported formats are listed in OPENROWSET.
https://docs.microsoft.com/en-us/azure/synapse-analytics/quickstart-serverless-sql-pool