A data platform provides support for unstructured files, semi-structured files, and structured files. In various different embodiments, the data platform provides functions for obtaining relative paths, absolute paths, and presigned URLs for files in internal and external stages; application programming interfaces (APIs) for integrating with external functions; built-in file-catalog tables; integration with cloud-storage platforms; customized views for flexible file-sharing options, stage-encryption options; notification integrations; table functions for generating file-catalog tables; streams on stages; streams on tables; and other features.