Xem 1-20 trên 151 kết quả Database architecture
  • This manual describes all features of the Oracle database server, an object-relational database management system. It describes how the Oracle database server functions, and it lays a conceptual foundation for much of the practical information contained in other manuals. Information in this manual applies to the Oracle database server running on all operating systems.

    pdf732p daokim 04-08-2009 175 70   Download

  • The role of Database Administrator (DBA) has become a key to success in today’s highly complex database systems. The best DBAs work behind the scenes, but are in the spotlight when critical issues arise. They plan, create, and maintain databases to ensure that the databases meet the data manage- ment needs of the business. DBAs also monitor the databases for perfor- mance issues and work to prevent unscheduled downtime. Being an effective DBA requires a broad understanding of the architecture of Oracle databases and expertise in solving system-related problems.

    pdf840p minhthanh 11-08-2009 159 19   Download

  • Contents at a Glance Foreword Preface Acknowledgements 1 Introduction to Oracle SQL 2 New Features of Oracle SQL 3 Oracle Database Architecture 4 The SELECT Statement 5 Filtering Rows 6 Sorting Rows 7 Operators, Conditions, and Pseudocolumns 8 Using SQL*Plus 9 Single-Row Functions 10 Joining Tables 11 Grouping and Summarizing Data 12 Subqueries 13 Unusual Query Types 14 Expressions 15 Data Manipulation Language (DML) 1

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  • Planning and Organizing a Database Planning for your database is the first step in organizing and implementing a database system. First define how the database will be used. This determines what type of database you need to create that will meet the needs of your business, for example, data warehousing, high online transaction processing, or general purpose. After you determine the purpose and type, you must outline the database architecture that will be used.

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  • Many times the Oracle DBA is hired once the database becomes to much to handle without one, inherits the position or is appointed to it “since they are so good with computers”. In any case, they usually get an undocumented system that follows no conventions and holds many traps for the unwary DBA.

    pdf102p trinh02 28-01-2013 21 3   Download

  • Many times the Oracle DBA is hired once the database becomes to much to handle without one, inherits position or is appointed to it "since they are so good with computers". In any case, they usually get an undocumented system that follows no conventions and holds many traps for the unwary DBA.

    pdf0p trinh02 28-01-2013 12 3   Download

  • The chapter is suitable for an introductory course. We recommend covering it, at least as self-study material, since students are quite likely to use the non-centralized (particularly client-server) database architectures when they enter the real world. The material in this chapter could potentially be supplemented by the two-phase commit protocol, to give students an overview of the most important details of non-centralized database architectures.

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  • In this chapter presenting the terminology and basic concepts that will be used throughout the lecture. This chapter discusses data models and defines the concepts of schemas and instances, which are fundamental to the study of database systems, discuss the three-schema DBMS architecture, provides a user’s perspective on what a DBMS is supposed to do, describe the types of interfaces and languages that are typically provided by a DBMS,...

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  • Chapter 1 introduce database system concepts and architecture. This chapter includes content: File-based approach and database approach; three-schema architecture and data independence; database languages; data models, database schema, database state;... inviting you to refer.

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  • In this chapter, you learned to: File-based approach and shared file approach; database approach; three-schema architecture and data independence; database languages, data models, database schemas and database states; classification of DBMS; data management systems framework.

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  • Chapter 17 - Client-server processing, parallel database processing, and distributed databases. After this chapter, you should able to: List reasons for client-server processing, parallel database processing, and distributed data; describe two-tier, three-tier, and multiple-tier client-server database architectures; describe common architectures for parallel database processing;...

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  • Oracle Database 10g - New Features For Administrators Provides beginning DBAs and developers with a solid foundation in the Database administration and programming basics needed to embark on an Oracle career. The focus is on Oracle Database 10g, but you’ll get the fundamentals applicable to all...

    pdf310p nghianguyenluong 13-04-2009 510 172   Download

  • As a consultant, the process of designing and developing technology-based solutions is one that you get to know intimately, thanks to iteration. Having been involved in a dozen or more projects in the past few years, I came to realize that a common component exists at the center of every one of those solutions. That component is the data storage system.

    pdf753p mylinh 11-08-2009 164 69   Download

  • Oracle Real Application Clusters (RAC) enables multiple instances that are linked by an interconnect to share access to an Oracle database. This enables RAC to provide high availability, scalability, and redundancy during failures. RAC provides scalability without requiring application code changes.This book is intended for chief technology officers, information technology architects, database administrators, system administrators, network administrators, and application administrators who perform the following tasks:...

    pdf222p daokim 03-08-2009 115 47   Download

  • Objectives: After completing this lesson, you should be able to do the following: • Describe your role as a database administrator (DBA), and explain typical tasks and tools • Plan an Oracle database installation • Use Optimal Flexible Architecture (OFA) • Install the Oracle software by using Oracle Universal Installer (OUI)

    ppt22p nmn233 09-09-2010 70 17   Download

  • This book is about database security and auditing. You will learn many methods and techniques that will be helpful in securing, monitoring and auditing database environments. It covers diverse topics that include all aspects of database security and auditing - including network security for databases, authentication and authorization issues, links and replication, database Trojans, etc. You will also learn of vulnerabilities and attacks that exist within various database environments or that have been used to attack databases (and that have since been fixed).

    pdf433p suthebeo 17-07-2012 66 17   Download

  • This is a practical guide for developers working with the Oracle Data Provider for .NET (ODP.NET) using VB.NET. From introducing ODP.NET and programming with ODP.NET to application development using ODP.NET and on to discussing Oracle Developer Tools for Visual Studio 2005, this book covers the important aspects of ODP.NET. 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....

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  • DNS architecture is a hierarchical distributed database and an associated set of protocols that define: •A mechanism for querying and updating the database. •A mechanism for replicating the information in the database among servers. •A schema of the database. DNS originated in the early days of the Internet when the Internet was a small network established by the United States Department of Defense for research purposes. The host names of the computers in this network were managed through the use of a single HOSTS file located on a centrally administered server....

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  • Provides beginning DBAs and developers with a solid foundation in the database administration and programming basics needed to embark on an Oracle career. The focus is on Oracle Database 10g, but you’ll get the fundamentals applicable to all Oracle database releases.

    pdf232p suthebeo 17-07-2012 43 12   Download

  • Relational databases hold data, right? They do indeed, but to think of a database as nothing more than a container for data is to miss out on the profound power that underlies relational technology. A far more powerful way of thinking lies in relational technologys foundation in the mathematical disciplines of logic and set theory.

    pdf405p suthebeo 17-07-2012 29 12   Download

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