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What is a blob file?

Asked by Billy Alvarez on November 06, 2021

Categories: Technology and computing Databases


Rating: 4.9/5 (53 votes)

From Wikipedia, the free encyclopedia. A Binary Large OBject (BLOB) is a collection of binary data stored as a single entity in a database management system. Blobs are typically images, audio or other multimedia objects, though sometimes binary executable code-is stored as a blob.

What is a blob URL? Blob URL/Object URL is a pseudo protocol to allow Blob and File objects to be used as URL source for things like images, download links for binary data and so forth. For example, you can not hand an Image object raw byte-data as it wouldnot know what to do with it.

What is a key blob? A key binary large object (key BLOB) provides a way to store a key outside of the cryptographic service provider (CSP). A key BLOB is used as the medium that adds a layer of security when transferring a key from one provider to-another.

What is createObjectURL? createObjectURL is a static method provided by the URL Web API. Returns a DOMString containing a unique blob URL, that is a URL with blob: as its scheme, followed by an opaque string uniquely identifying the object in thebrowser.