Date, C. J. <br/><br/>
SQL and relational theory :  how to write accurate SQL code  
C.J. Date. 
 - 1st ed. 
 - [Sebastopol, CA] :   O'Reilly,   2009. 
 - xix, 404 p. :   ill. ;   24 cm. 
 - Theory in practice .
 - Theory in practice (Sebastopol, Calif.) .
<br/><br/>Includes bibliographical references (p. 389-396) and index. 
<br/><br/><label>ISBN: </label>9780596523060 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Relational databases.<br/>SQL (Computer program language)