Jun 13, 2019 · Azure blob storage service allows user to create / update / upload unstructured data in Azure. Later, user can access / download this data from anywhere in the world. This data can be Audio, Video, Image, Text or Log file. We can also use these service for streaming video or audio files. SQL Server Data Automation Through Frameworks: Building Metadata-Driven Frameworks with T-SQL, SSIS, and Azure Data Factory by Andy Leonard, Kent Bradshaw, 391 pages, 2020-11-17. Read It Now. Oct 05, 2012 · A factory interface may only declare factory functions: each function must take one or more arguments and must return an instance of the runtime class. The Widget runtime class has only one non-default constructor, so we only need to declare a single factory function here, but it’s possible to define as many factory functions as are needed.