Oracle database concepts

Lesson Working with Oracle present the content: using oracle documentation, database concepts, ACID — Atomicity, ACID — Consistency, ACID — Isolation, ACID — Durability, locking and blocking, oracle environment variables, introducing SQL, types of SQL commands...

26p lehieu_kitty 30-07-2020 43 3   Download

Lesson Unix overview present the content: logon to a Unix environment, understand Unix file systems, understand Unix shells, perform Unix commands, use the vi editor, explain Oracle database concepts, query an oracle database.

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Whether you use this or some other DBA handbook, you will still need to refer to the Oracle database manuals frequently to get the full details of complex database operations. I can’t overemphasize the importance of mastering the fundamentals of Oracle Database 11g that are presented in the Oracle Concepts manual. Mastering this volume is critical to understanding many advanced DBA procedures.

1376p toonghoang1002 05-03-2014 95 19   Download

Where do we start? One of the problems in comprehending a massive product such as the Oracle database is the difficulty of getting a good sense of how the product works without getting lost in the details of implementing specific solutions. This book aims to solve this problem by giving you a thorough grounding in the concepts and technologies that form the foundation of the Oracle Database Server.

31p nhacsihuytuan 13-04-2013 47 4   Download

The relational database concept was described first by Dr. Edgar F. Codd in an IBM research publication entitled “System R4 Relational” appearing in 1970. Initially, it was unclear whether any system based on this concept could achieve commercial success. Nevertheless, Relational Software, Incorporated (RSI) began in 1977 and released Oracle V.2 as the world’s first relational database within a couple of years. By 1985, Oracle could claim more than 1,000 relational database customer sites.

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We’ve tried to write a book for a wide range of Oracle users, from the novice to the experienced user. To address this range of users, we’ve focused on the concepts and technology behind the Oracle database. Once you fully understand these facets of the product, you’ll be able to handle the particulars of virtually any type of Oracle database. Without this understanding, you may feel overburdened as you try to con- nect the dots of Oracle’s voluminous feature set and documentation.

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Thus, for example in the first matrix, it is evident that in terms of net migration (NETMIG) there is no significant difference (at the 90% probability level) between the PU regions and those in either the IA or the IR types. Four other possible combinations show no significant difference in migration rates at the 90% level. The IA and PRR “pass the test” at the 90% significance level, but not at the 95% level. This leave three possible combinations of D-P types which show a statistically significant difference in terms of net migration rates (at the 95% level).

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In addition to sophisticated precision tools and accurate, authoritative content, Thomson Scientific solutions are supported by best-in-class customer service and training. Highly skilled and knowledgeable consultants from a wide variety of educational and professional backgrounds staff our worldwide Knowledge Center, 24 hours a day, every business day. As an extension of your organization, the Knowledge Center offers peer support through specialists with backgrounds as librarians, IT specialists, scientists, attorneys and business professionals.

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Automatic Storage Management Automatic Storage Management automates and simplifies the layout of datafiles, control files, and log files. Database files are automatically distributed across all available disks, and database storage is rebalanced whenever the storage configuration changes. It provides redundancy through the mirroring of database files, and it improves performance by automatically distributing database files across all available disks. Rebalancing of the database's storage automatically occurs whenever the storage configuration changes....

192p nhacsihuytuan 13-04-2013 46 4   Download

The simplest way to think of Oracle’s implementation of read consistency is to imagine each user operating a private copy of the database, hence the multiversion consistency model. Read Consistency, Undo Records, and Transactions To manage the multiversion consistency model, Oracle must create a read-consistent set of data when a table is queried (read) and simultaneously updated (written). When an update occurs, the original data values changed by the update are recorded in the database undo records.

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With database concepts and theories clearly explained in Oracle's context, readers quickly learn how to fully leverage Oracle's performance and scalability capabilities at every stage of designing and developing an Oracle-based enterprise application. The book is based on the author's more than ten years of experience working with Oracle, and is filled with dependable, tested, and proven performance optimization techniques.

729p titatu_123 01-03-2013 50 6   Download

After completing this lesson, you should be able to do the following: Interpret the concept of a hierarchical query Create a tree-structured report Format hierarchical data Exclude branches from the tree structure

18p trinh02 28-01-2013 43 3   Download

After completing this lesson, you should be able to do the following: Describe the concept of automaticundo management Create and maintain the automatic managedundo tablespace Set the retention period Use dynamic performance views to check rollback segment performance Reconfigure and monitor rollback segments Define the number and sizes of rollback segments Allocate rollback segments to transactions

36p trinh02 28-01-2013 43 5   Download

Overview The Oracle server uses many memory components, background processes, and file structures for its backup and recovery mechanism. This lesson reviews the concepts presented in the Oracle9i Database Administration Fundamentals I course, with an emphasis on backup and recovery requirements. Oracle Instance An Oracle instance consists of memory areas (mainly System Global Area [SGA]) and background processes, namely PMON, SMON, DBWn, LGWR, and CKPT. An instance is created during the nomount stage of the database startup after the parameter file has been read.

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The most reknowned Oracle Resourse- Fully Updated for Oracle 9i. Master all the powerful features of Oracle9i using the exclusive information inside this indispensable resource. Get comprehensive information on all the features of Oracle 9i. Written by best-selling authors and Oracle gurus Kevin Loney, George Koch, and the experts at TUSC, Oracle9I: The Complete Reference covers critical relational, object-relational, and Web database concepts, as well as SQL, SQL*PLUS, PL/SQL, Java, JDBC, SQLJ, and XML programming.

0p bongbong_hong 18-12-2012 78 2   Download

Sub-capacity licensing: The current Oracle licensing model requires the Oracle RAC database to be licensed for all CPUs on each server in the cluster. Sometimes customers wish to use only a subset of the CPUs on the server for a particular Oracle RAC database. Oracle VM can be configured in such way that it is recognized as a hard partition. Hard partitions allow customers to only license those CPUs used by the partition instead of licensing all CPUs on the physical server.

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This two-day seminar is designed to give the student a firm conceptual understanding of the goals and techniques that are used in data warehousing. The seminar explains the concepts and techniques in plain English, and strips away all of the marketing hype to give the student a clear understanding of how to construct a data warehouse using the new technologies. The seminar begins with a historical review of data warehousing and explains the basic construction techniques for data warehousing and contrasts them with traditional online teleprocessing systems....

129p suthebeo 17-07-2012 98 19   Download

This course offers students an introduction to Oracle Database 10g database technology. In this class, students learn the concepts of relational databases and the powerful SQL programming language. This course provides the essential SQL skills that allow developers to write queries against single and multiple tables, manipulate data in tables, create database objects, and query meta data.

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Oracle Database 2 Day DBA 11g Release- P14:Oracle Database 2 Day DBA is a database administration quick start guide that teaches you how to perform day-to-day database administrative tasks. The goal of this guide is to help you understand the concepts behind Oracle Database. It teaches you how to perform all common administrative tasks needed to keep the database operational, including how to perform basic troubleshooting and performance monitoring activities.

10p maicon246 04-10-2010 68 5   Download

Oracle Database 2 Day DBA 11g Release- P13:Oracle Database 2 Day DBA is a database administration quick start guide that teaches you how to perform day-to-day database administrative tasks. The goal of this guide is to help you understand the concepts behind Oracle Database. It teaches you how to perform all common administrative tasks needed to keep the database operational, including how to perform basic troubleshooting and performance monitoring activities.

20p maicon246 04-10-2010 91 6   Download