Date, C.J A. Kannan S. Swamynathan <br/><br/>
An Introduction to Database Systems  / 
by C.J.Date, A. Kannan and S. Swamynathan 
 - 8th Ed. 
 - New Delhi:  Doorling Kindersley,  2013 
 - p.929 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science<br/>Computer Programming<br/>Data files and Databases
<br/><br/><label>Dewey Class. No.: </label>005.74  / DAT-A.8