Querying Using SQL in Data Sorting and Filtering: An Example of the California State Library

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California State Library SQL Statement In this work, the SQL select query is used to highlight how querying using SQL is used in data sorting and filtering in any database. From the database there were several entity relationships observed. Each user borrows one book at a time but the user may have one or many borrowing record. Each borrow record must belong to only one user and each book may have one or many reservation and each borrow record must belong to only one book though each book may have one or many borrow record. Query Screenshots California State Library Query1 Name Customer ID City Return Date Juan Carlos 12388 Beverly Hills 11/10/2012 Katie Holmes 28754 Fresno 12/10/2012 Catherine Doreen 34894 Los Angeles 10/12/2012 Marron Jane 93843 Los Angeles 12/10/2012 Adam Levigne 75384 Los Angeles 12/10/2012 Chu Xi Chin 90333 Sacramento 10/10/2012 Johnie Depp 75992 San Diego 11/10/2012 Jeremy Brown 87982 San Francisco 11/10/2012 Abdul Mohamed 90434 San Jose 12/10/2012 Jerry West 84482 San Jose 10/10/2012 California State Library Query Customer ID City Book Number Return Date 75384 Los Angeles QE531.E32 12/10/2012 87982 San Francisco QA76.76H94M88 11/10/2012 84482 San Jose QE534.2.B64 10/10/2012 93843 Los Angeles 025.42852523BMC 12/10/2012 12388 Beverly Hills PR4558.A11947ROBA1 11/10/2012 34894 Los Angeles D.664.M32202 10/12/2012 90333 Sacramento QA76.76.T49G641997 10/10/2012 90434 San Jose LB2395.C651991 12/10/2012 75992 San Diego D5559.46.H351986 11/10/2012

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