Teach yourself SQL in 21 days /  [book] 
 Teach yourself SQL in twenty-one days 
Ryan K. Stephens ... [et al.] 
 - 2nd ed. 
 - Indianapolis, Ind. :  Sams Pub.,  c1997. 
 - xxviii, 586 p. :  ill. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0672311100 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SQL (Computer program language)
<br/><br/><label>LC Class. No.: </label>QA76.73.S67  / T253