Titel: The Art of SQL
Autor/en: Stephane Faroult, Peter Robson
März 2006 - kartoniert - 349 Seiten
For all the buzz about trendy IT techniques, data processing is still at the core of our systems, especially now that enterprises all over the world are confronted with exploding volumes of data. Database performance has become a major headache, and most IT departments believe that developers should provide simple SQL code to solve immediate problems and let DBAs tune any "bad SQL" later.
In The Art of SQL, author and SQL expert Stephane Faroult argues that this "safe approach" only leads to disaster. His insightful book, named after Art of War by Sun Tzu, contends that writing quick inefficient code is sweeping the dirt under the rug. SQL code may run for 5 to 10 years, surviving several major releases of the database management system and on several generations of hardware. The code must be fast and sound from the start, and that requires a firm understanding of SQL and relational theory.
The Art of SQL offers best practices that teach experienced SQL users to focus on strategy rather than specifics. Faroult's approach takes a page from Sun Tzu's classic treatise by viewing database design as a military campaign. You need knowledge, skills, and talent. Talent can't be taught, but every strategist from Sun Tzu to modern-day generals believed that it can be nurtured through the experience of others. They passed on their experience acquired in the field through basic principles that served as guiding stars amid the sound and fury of battle. This is what Faroult does with SQL.
Like a successful battle plan, good architectural choices are based on contingencies. What if the volume of this or that table increases unexpectedly? What if, following a merger, the number of users doubles? What if you want to keep several years of data online? Faroult's way of looking at SQL performance may be unconventional and unique, but he's deadly serious about writing good SQL and using SQL well. The Art of SQL is not a cookbook, listing problems and giving recipes. The aim is to get you-and your manager-to raise good questions.
1. Laying Plans
Designing Databases for Performance
2. Waging War
Accessing Databases Efficiently
3. Tactical Dispositions
Thinking SQL Statements
Understanding Physical Implementation
6. The Nine Situations
Recognizing Classic SQL Patterns
7. Variations in Tactics
Dealing with Hierarchical Data
8. Weaknesses and Strengths
Recognizing and Handling Difficult Cases
9. Multiple Fronts
10. Assembly of Forces
Coping with Large Volumes of Data
Trying to Salvage Response Times
12. Employment of Spies
Stephane Faroult first discovered relational databases and the SQL language back in 1983. He joined Oracle France in their early days (after a brief spell with IBM and a bout of teaching at the University of Ottawa) and soon developed an interest in performance and tuning topics. After leaving Oracle in 1988, he briefly tried to reform and did a bit of operational research, but after one year, he succumbed again to relational databases. He has been continuously performing database consultancy since then, and founded RoughSea Ltd in 1998.
"Auf den über 300 Seiten erfährt der Leser, wie man schlecht geschriebenem SQL Code zu Leibe rückt. Beziehungsweise, wie man diesen direkt von Anfang an vermeidet. Der Bogen spannt sich hier von der Analyse und Optimierung einfacher Statements über die Wahl von geeigneten Indizes bis hin zur Analyse komplexer Statements und Embedded SQL in Client Sprachen. [...] Kurzum, ich mag dieses Buch und kann es eigentlich nur jedem empfehlen, der sich professionell mit Datenbanken auseinandersetzt." - Frank Kalis, InsideSQL.de
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