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.
Main goal of database watermarking is to generate robust watermark for database. Here we propose a method as multi-place watermarking for security in database. It takes binary image as watermark. This watermark is embedded in two different attribute of tuple. One in the numeric attribute of tuple and another in the data attributes time (seconds) field. Then in extraction we are first extracting both watermark one by one and after that comparing it with the original watermark in bit by bit manner. Therefore, if any of the bit matches then match count is increased and based on this match count it is decided that whether the extracted watermark is correct or not. Lastly we discuss the implementation setup and the performance of proposed method of database watermarking against possible number of attacks.