SQL AND RELATIONAL THEORY HOW TO WRITE ACCURATE SQL CODE

 
9788184046939: SQL AND RELATIONAL THEORY HOW TO WRITE ACCURATE SQL CODE
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C.J. Date
Published by Shroff Publishers/O`Reilly (2009)
ISBN 10: 8184046936 ISBN 13: 9788184046939
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Book Description Shroff Publishers/O`Reilly, 2009. Softcover. Condition: New. Understanding SQL`s underlying theory is the best way to guarantee that your SQL code is correct and your database schema is robust and maintainable. On the other hand, if you`re not well versed in the theory, you can fall into several traps. In SQL and Relational Theory, author C.J. Date demonstrates how you can apply relational theory directly to your use of SQL. With numerous examples and clear explanations of the reasoning behind them, you`ll learn how to deal with common SQL dilemmas, such as: Should database access granted be through views instead of base tables? Nulls in your database are causing you to get wrong answers. Why? What can you do about it? Could you write an SQL query to find employees who have never been in the same department for more than six months at a time? SQL supports "quantified comparisons," but they`re better avoided. Why? How do you avoid them? Constraints are crucially important, but most SQL products don`t support them properly. What can you do to resolve this situation? Database theory and practice have evolved since Edgar Codd originally defined the relational model back in 1969. Independent of any SQL products, SQL and Relational Theory draws on decades of research to present the most up-to-date treatment of the material available anywhere. Anyone with a modest to advanced background in SQL will benefit from the many insights in this book. Printed Pages: 442. Seller Inventory # 51488

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C.J. Date
Published by Shroff Publishers/O`Reilly (2009)
ISBN 10: 8184046936 ISBN 13: 9788184046939
New Softcover Quantity Available: > 20
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A - Z Books
(New Delhi, DELHI, India)
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Book Description Shroff Publishers/O`Reilly, 2009. Softcover. Condition: New. Understanding SQL`s underlying theory is the best way to guarantee that your SQL code is correct and your database schema is robust and maintainable. On the other hand, if you`re not well versed in the theory, you can fall into several traps. In SQL and Relational Theory, author C.J. Date demonstrates how you can apply relational theory directly to your use of SQL. With numerous examples and clear explanations of the reasoning behind them, you`ll learn how to deal with common SQL dilemmas, such as: Should database access granted be through views instead of base tables? Nulls in your database are causing you to get wrong answers. Why? What can you do about it? Could you write an SQL query to find employees who have never been in the same department for more than six months at a time? SQL supports "quantified comparisons," but they`re better avoided. Why? How do you avoid them? Constraints are crucially important, but most SQL products don`t support them properly. What can you do to resolve this situation? Database theory and practice have evolved since Edgar Codd originally defined the relational model back in 1969. Independent of any SQL products, SQL and Relational Theory draws on decades of research to present the most up-to-date treatment of the material available anywhere. Anyone with a modest to advanced background in SQL will benefit from the many insights in this book. Printed Pages: 442. Seller Inventory # 51488

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ISBN 10: 8184046936 ISBN 13: 9788184046939
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Book Description Paperback. Condition: NEW. This is an International Edition Brand New. Same Title Author and Edition as listed. Standard Delivery within 3-7 business days ACROSS THE GLOBE. We can ship to PO Box address in US. International Edition Textbooks may bear a label "Not for sale in the U.S. or Canada" or "For sale in Asia only" or similar restrictions- printed only to discourage students from obtaining an affordable copy. US Court has asserted your right to buy and use International edition. Access code/CD may not provided with these editions. We may ship the books from multiple warehouses across the globe including Asia depending upon the availability of inventory. Printed in English. Customer satisfaction guaranteed. Choose expedited shipping for Express delivery. Tracking number provided for every order. Seller Inventory # RI_9788184046939

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Published by SHROFF - O'REILLY
ISBN 10: 8184046936 ISBN 13: 9788184046939
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Book Description SHROFF - O'REILLY. Condition: New. 8184046936 This is an International Edition. Brand New, Paperback, Delivery within 6-14 business days, Similar Contents as U.S Edition, printed in Black & White. Choose Expedited shipping for delivery within 3-8 business days. We do not ship to PO Box, APO , FPO Address. In some instances, subjects such as Management, Accounting, Finance may have different end chapter case studies and exercises. International Edition Textbooks may bear a label "Not for sale in the U.S. or Canada" and "Content may different from U.S. Edition" - printed only to discourage U.S. students from obtaining an affordable copy. The U.S. Supreme Court has asserted your right to purchase international editions, and ruled on this issue. Access code/CD is not provided with these editions , unless specified. We may ship the books from multiple warehouses across the globe, including India depending upon the availability of inventory storage. Customer satisfaction guaranteed. Seller Inventory # AI_9788184046939

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