Tuning of SQL code is generally cheaper than changing the data model. Physical and configuration tuning involves a search for bottlenecks that often points to SQL code or data model issues. Building an appropriate data model and writing properly performing SQL code can give 100%+ performance improvement. Physical and configuration tuning often gives at most a 25% performance increase.
Gavin Powell shows that the central theme of Oracle10gR2 Performance Tuning is four-fold: denormalize data models to fit applications; tune SQL code according to both the data model and the application in relation to scalability; create a well-proportioned physical architecture at the time of initial Oracle installation; and most important, mix skill sets to obtain the best results.

Автор:Chuck Nohara
Название: Ondori: Patchwork bags
Издательство: Ondori
Год: 2009
Формат: jpg
Размер: 4 Мб
Язык: Японский
Для сайта: www.mirknig.com

Сумки в стиле пэчворк. Самые подробные инструкции для самых дотошных и пунктуальных портных! Интересные идеи кроя и использования печворк-технологий на сумках. Большинство сумок - на основе трианглов.

Название: Ornaments
Автор: Philipp Luidi, Helmut Huber
Издательство: -
Страниц: 366
Формат: PDF
Размер: 48.9 Мб (+3% для восстановления)
Качество: Нормальное
Язык: Немецкий
Год издания: -

Сборник орнаментов, декоративных элементов, в т.ч. инициалов и буквиц разных периодов в искусстве.

Advanced computational methods are often employed for the solution of modelling and decision-making problems. This book addresses issues associated with the interface of computing, optimisation, econometrics and financial modelling. Emphasis is given to computational optimisation methods and techniques. The first part of the book addresses optimisation problems and decision modelling, with special attention to applications of supply chain and worst-case modelling as well as advances in the methodological aspects of optimisation techniques. The second part of the book is devoted to optimisation heuristics, filtering, signal extraction and various time series models. The chapters in this part cover the application of threshold accepting in econometrics, the structure of threshold autoregressive moving average models, wavelet analysis and signal extraction techniques in time series. The third and final part of the book is about the use of optimisation in portfolio selection and real option modelling

Overdrive is the leading trucking magazine for professional owners and drivers. Overdrive serves primarily commercial truck owner-operators and small fleet owners, as well as company drivers. Our editorial focus helps owner-operators and small fleet owners be successful in managing their business.

A practical guide for developers working with the Oracle Data Provider for .NET and the Oracle Developer Tools for Visual Studio 2005
* Application development with ODP.NET
* Dealing with XML DB using ODP.NET
* Oracle Developer Tools for Visual Studio .NET
Who this book is written for?
The book is written for professional .NET developers who need to work with and take full advantage of Oracle Database 10g using Visual Studio 2005. Developers are expected to be familiar with Visual Basic.NET 2005 and have minimum knowledge of Oracle SQL and PL/SQL.