A BLOB (Binary Large Object) is a large binary data object that is usually processed and stored by databases in a special way. Typical BLOBs are files, such as video, audio, or image files.
The abbreviation BLOB stands for Binary Large Object and describes a large file that is in binary form and should be stored in a database. It may be, for example, video, audio or image and graphics files.
Special procedures and data types are necessary for storing and processing such large files in databases. On the one hand, this is due to the size of the files and, on the other hand, to the structure of the contents of the BLOBs, which is not readable by the database systems.