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Teradata Administrator User Guide
Teradata Administrator User Guide

... who are responsible for the day-to-day operation and maintenance of the data warehouse. This book provides more details on topics of interest primarily to database administrators. Where complete syntax is necessary or in-depth details are required, this book may point you to other books with more ex ...
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... The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. ...
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... videos can be kept out of the database while the structured metadata in the database remains responsive and easy to manage. This is a much more natural and integrated solution than allowing the video files to inflate the database or forcing the actual source videos to be stored in an unmanaged locat ...
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About Installing BIRT iServer for Linux and UNIX

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... » Deploy services up to four times faster with a factory-assembled solution. Designed to simplify solution integration and deployment, the Oracle Optimized Solution for SAP enables faster time to service. All hardware arrives ready for fast data center installation. Because Oracle pre-selects, pre-a ...
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Oracle Database Administrator`s Guide
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... dangerous applications. It shall be the licensee's responsibility to take all appropriate fail-safe, backup, redundancy and other measures to ensure the safe use of such applications if the Programs are used for such purposes, and we disclaim liability for any damages caused by such use of the Progr ...
Oracle® Business Process Management
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... an operating system command prompt, or in a shell script, to access and maintain the database manager. Notes: 1. Slashes (/) in directory paths are specific to UNIX based systems, and are equivalent to back slashes (\) in directory paths on Windows operating systems. 2. The term Windows normally ref ...
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DataGuard_Concepts_Architecture_10072007

...  Not sure if standby is a complete copy - Tables, schemas, transactions skipped?  Standby can be changed - Failover not prevented - Changes can be made - No warning that changes made ...
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... • Set session account to any valid account as long as the session is one to which you are assigned in DBC.Accounts. • Add, change, or remove multi-value compression at any time using the ALTER TABLE statement. Changes to this book include the following: • Added new object use count examples. • The R ...
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... documentation, delivered to U.S. Government end users are "commercial computer software" pursuant to the applicable Federal Acquisition Regulation and agencyspecific supplemental regulations. As such, use, duplication, disclosure, modification, and adaptation of the programs, including any operating ...
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Probabilistic Databases - Knowledge and Database Systems
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database tuning in ppt - NYU Computer Science Department
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... • Each transaction executes against the version of the data items that was committed when the transaction started: – No locks for read – Costs space (old copy of data must be kept) ...
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Concurrency control

In information technology and computer science, especially in the fields of computer programming, operating systems, multiprocessors, and databases, concurrency control ensures that correct results for concurrent operations are generated, while getting those results as quickly as possible.Computer systems, both software and hardware, consist of modules, or components. Each component is designed to operate correctly, i.e., to obey or to meet certain consistency rules. When components that operate concurrently interact by messaging or by sharing accessed data (in memory or storage), a certain component's consistency may be violated by another component. The general area of concurrency control provides rules, methods, design methodologies, and theories to maintain the consistency of components operating concurrently while interacting, and thus the consistency and correctness of the whole system. Introducing concurrency control into a system means applying operation constraints which typically result in some performance reduction. Operation consistency and correctness should be achieved with as good as possible efficiency, without reducing performance below reasonable levels. Concurrency control can require significant additional complexity and overhead in a concurrent algorithm compared to the simpler sequential algorithm.For example, a failure in concurrency control can result in data corruption from torn read or write operations.
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