JDBC Tutorials - Herong's Tutorial Examples - v3.11, by Dr. Herong Yang
Overview of BLOB (Binary Large Object)
This section describes what are BLOB (Binary Large Object) data types and how to work with them.
BLOB (Binary Large Object) is a large collection of binary data stored in a database table. Different database servers handles BLOB differently. But there are some common characteristics like:
JDBC offers an interface, java.sql.Blob, to allow JDBC driver to provide generic functionalities to handle BLOB data in the database.
BLOB data can also be handled as byte arrays: byte.
BLOB data can also be handled as binary streams with the java.io.InputStream class.
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