Data federation service provides data query and file writing services for application developers and data analysts. Users can realize unified query and data writing of heterogeneous data sources through unified and standard SQL statements.
For application developers and data analysts, the Data federation service provides data query and file writing services for multi-source heterogeneous data storage systems.
The Data Federation service provides a unified data access layer to shield the differences among heterogeneous data sources. Before querying data from data storage systems or writing data to data storage systems, you need to create corresponding data reading or writing channels.
Data Read and Write¶
Authorized applications can call the REST APIs to access the data sources.
The Data Federation service provides an interface for developers to query data from various data sources and helps with debugging and analysis.
The Data Federation service provides an interface for developers to download files from data sources through authorized channels.
Learn how to use Data Federation channel to query asset history data that is archived to Blob.