Verwandte Artikel zu SQL and Relational Theory: How to Write Accurate SQL...
Inhaltsangabe
SQL is full of difficulties and traps for the unwary. Understanding relational theory is essential for avoiding those traps, but you need to know how to map the ideas of that theory into SQL code. In SQL and Relational Theory, author C.J. Date demonstrates how you can apply relational theory directly to your use of SQL. The second edition includes updated material such as recursive queries, new operators, and extended discussion of topics including aggregate operators, grouping and ungrouping, and view updating. With numerous examples, exercises, and clear explanations, you'll learn how to deal with common SQL dilemmas, such as: * Why is proper column naming so important? * 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? 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.
Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.
Über die Autorin bzw. den Autor
C.J. Date has a stature that is unique within the database industry. C.J. is a prolific writer, and is well-known for his best-selling textbook: An Introduction to Database Systems (Addison Wesley). C.J. is an exceptionally clear-thinking writer who can lay out principles and theory in a way easily understood by his audience.
„Über diesen Titel“ kann sich auf eine andere Ausgabe dieses Titels beziehen.
Neu kaufen
Diesen Artikel anzeigen
EUR 224,04
EUR 25,63 für den Versand von USA nach Deutschland
Versandziele, Kosten & Dauer
Suchergebnisse für SQL and Relational Theory: How to Write Accurate SQL...
Beispielbild für diese ISBN
SQL and Relational Theory : How to Write Accurate SQL Code
Verlag:
O'Reilly Media, Incorporated, 2012
ISBN 10: 1449316409
ISBN 13: 9781449316402
Gebraucht
Softcover
Anbieter: Better World Books, Mishawaka, IN, USA
Verkäuferbewertung 5 von 5 Sternen
Zustand: Very Good. Used book that is in excellent condition. May show signs of wear or have minor defects. Bestandsnummer des Verkäufers 13523796-6
Anzahl: 1 verfügbar
Beispielbild für diese ISBN
SQL and Relational Theory: How to Write Accurate SQL Code
Anbieter: SecondSale, Montgomery, IL, USA
Verkäuferbewertung 4 von 5 Sternen
Zustand: Good. Item in good condition and has highlighting/writing on text. Used texts may not contain supplemental items such as CDs, info-trac etc. Bestandsnummer des Verkäufers 00090594639
Anzahl: 1 verfügbar
Beispielbild für diese ISBN
SQL and Relational Theory: How to Write Accurate SQL Code
Anbieter: Toscana Books, AUSTIN, TX, USA
Verkäuferbewertung 5 von 5 Sternen
Paperback. Zustand: new. Excellent Condition.Excels in customer satisfaction, prompt replies, and quality checks. Bestandsnummer des Verkäufers Scanned1449316409
Anzahl: 1 verfügbar