Binary large object

A binary large object (BLOB or blob) is a collection of binary data stored as a single entity. Blobs are typically images, audio or other multimedia objects, though sometimes binary executable code is stored as a blob. They can exist as persistent values inside some databases or version control system, or exist at runtime as program variables in some programming languages. Blobs are not to be confused with binary files stored in a file system.

ref. Binary large object - Wikipedia


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