FAQ: What is a BLOB?
What is a BLOB?
A BLOB (Binary Large Object) is a field created in a database such as Oracle, DB2, Informix or Microsoft SQL Server. A BLOB field can hold binary information like images or files. Generally, any datatype that starts with "LONG" is a BLOB.
For example: "LONG", "LONG RAW", "LONG VARCHAR".
Note: ArcView does not support BLOB datatypes.