published_or_final_version / Chinese / Master / Master of Arts

Estágio realizado na Wipro Retail / Tese de mestrado integrado. Engenharia Informática e Computação. Faculdade de Engenharia. Universidade do Porto. 2009

Estágio realizado na Enabler Informática, S. A. e orientado pelo Eng.ª Sandra Oliveira / Tese de mestrado integrado. Engenharia Informátca e Computação. Faculdade de Engenharia. Universidade do Porto. 2008

Estágio realizado na Wipro Retail e orientado pelo Eng.º Pedro Pinto / Tese de mestrado integrado. Engenharia Informática e Computação. Faculdade de Engenharia. Universidade do Porto. 2009

No description available.

Aim: The aim of this research has been to answer the question of how and based on what combination of grand strategies, Oracle as a high-tech company, developed and improved its business and affected its competitors and other industries. Method: Analytical study of published literature and Oracle internal annual reports combined with personal experience of working with Oracle products and observing its strategies for more than a decade have been the essential part of this study. The main method of data collection was gathering information from those websites which include information and news around Oracle strategic movements. This research has applied that information to deliver an analysis of not only the Oracle current strategy, but its strategy for the future and tendency to expand its market and direct the information industry, moving forward. Result & Conclusion: Being around for three decades, Oracle has had a great history of successful strategies with introducing innovation, leading software industry, and directing the future of information technology. It has been survived from many uncertainties as the nature of its business. Knowing its competitors, spending billions of dollars on research and development, filling the gaps of having the best products through acquisition, and creating valuable products and services for many industries, has brought Oracle on the top in its area. Its vision of sharing information and giving the world wide access to a comprehensive knowledge of using its products and services has increased loyalty in its customers and business partners. Oracle is a crucial company in this information age, and its products and solutions have been critically useful for a wide range of businesses. These are the facts which have been concluded in this study. Contribution of the study: Understanding of Oracle strategy is important for millions of managers, developers, and users of database systems and enterprise applications throughout the world. Being successful in their career and professional positions, they have to know where the information technology is moving and they have no choice of using those software products which a major part of it, is created or at least directed by Oracle. It can guarantee the future of information management in a company.

No description available.

FernUniversiẗat, Masterarbeit--Hagen, 2007.

To support current and emerging database applications, Object-Relational Database Management Systems (ORDBMS) provide mechanisms to extend the data storage capabilities and the functionality of the database with application-specific types and methods. Using these mechanisms, the database may contain user-defined data types, large objects (LOBs), external procedures, extensible indexing, query optimisation techniques and other features that are treated in the same way as built-in database features . The many extensibility options provided by the ORDBMS, however, raise several implementation challenges that are not always obvious. This thesis examines a few of the key challenges that arise when extending Oracle database with new functionality. To realise the potential of extensibility in Oracle, the thesis used the problem area of image retrieval as the main test domain. Current research efforts in image retrieval are lagging behind the required retrieval, but are continuously improving. As better retrieval techniques become available, it is important that they are integrated into the available database systems to facilitate improved retrieval. The thesis also reports on the practical experiences gained from integrating an extensible indexing scenario. Sample scenarios are integrated in Oracle9i database using the data cartridge mechanism, which allows Oracle database functionality to be extended with new functional components. The integration demonstrates how additional functionality may be effectively applied to both general and specialised domains in the database. It also reveals alternative design options that allow data cartridge developers, most of who are not database server experts, to extend the database. The thesis is concluded with some of the key observations and options that designers must consider when extending the database with new functionality. The main challenges for developers are the learning curve required to understand the data cartridge framework and the ability to adapt already developed code within the constraints of the data cartridge using the provided extensibility APls. Maximum reusability relies on making good choices for the basic functions, out of which specialised functions can be built. / KMBT_363 / Adobe Acrobat 9.54 Paper Capture Plug-in

The thesis analyses tools, which offers Oracle Database 11g R2 for tuning SQL statements. Tools are then used in reporting section of real banking system to optimize SQL statements. Then are created test cases and results are analyzed with categorization to prove successful optimization. In the end are evaluated benefits of the optimization and created advices for next progress in optimization.