Digital multimedia watermarking technology was
suggested in the last decade to embed copyright information in
digital objects such as images, audio and video. However, the
increasing use of relational database systems in many real-life
applications created the need for database watermarking systems
for protection of database. As a result, watermarking relational
database systems is now merging as a research area that deals with
the legal issue of copyright protection of database
systems. Therefore, an evolution of watermarking has been started
with Relational database. It all started with the first method
proposed in 2002 by agrawal and kiernan for watermarking in
relational database. Then there are so many methods have been
proposed and implemented by many researchers. We are going to
see the evolution of database watermarking for security in database
in this paper.
Keywords: Database Wat