O'Hearn, Steve <br/><br/>
OCA Oracle database SQL :  exam guide (exam IZO-071) / 
Steve O'Hearn. 
 - New York:  McGraw-Hill Education,  c2017. 
 - xxv, 609 p. :   ill. ;  24 cm. 
<br/><br/>Includes appendix, glossary and index. 
<br/><br/><label>ISBN: </label>978-1-259-58549-4 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oracle (Computer file) --Study guides. --Examinations <br/>Database management. <br/>SQL (Computer Program Language) --Study guides.--Examinations