TAILIEUCHUNG - Oracle® Database Recovery Manager Quick Start Guide

When a transaction ends with a ROLLBACK operation, a possible approach is to simply abort the transaction in all replicas without verifying if previously returned results were correct (., this solution is adopted in [13]). In our system, this could be easily implemented by execut- ing a BFT operation that aborts the transaction in each replica. This approach does not lead to any inconsistency in the replicas as the database state is not modified. How- ever, in case of a faulty coordinator, the application might have observed an erroneous database state during the course of the transaction, which might have led to the spurious decision of aborting the transaction. For exam- ple, consider. | Oracle Database Recovery Manager Quick Start Guide 10g Release 1 December 2003 Part No. B10769-01 Recovery Manager Quick Start Guide has three purposes To introduce the basic concepts of Oracle backup and recovery and the Recovery Manager RMAN the tool Oracle recommends that you use for your backup and recovery To orient you on the rest of the backup and recovery documentation set To serve as a convenient quick reference for the most frequently used RMAN commands options and views This document is organized into the following sections Overview of Backup and Recovery Documentation Set Overview of the RMAN Environment Starting and Exiting RMAN Configuring Persistent Settings for the RMAN Environment Backing Up Database Files Restoring and Recovering Database Files Reporting on RMAN Operations Managing the RMAN Repository Repetitive Tasks RMAN and Scripting RMAN Syntax Quick Reference Backup and Recovery Views Documentation Accessibility ORACLE Oracle is a registered trademark and SQL Plus is a trademark or registered trademark of Oracle Corporation. Other names may be trademarks of their respective owners. Copyright 2003 Oracle Corporation. All Rights Reserved. Conventions for Command Syntax The following table shows the syntax convention used in this manual. Convention Meaning Brackets enclose one or more optional items. Do not enter the brackets. . . Braces enclose two or more items one of which is required. Do not enter the braces. A vertical bar represents a choice of two or more options within brackets or braces. Enter one of the options. Do not enter the vertical bar. Horizontal ellipsis points indicate either That we have omitted parts of the code that are not directly related to the example That you can repeat a portion of the code Vertical ellipsis points indicate that we have omitted several lines of code not directly related to the example. . Other notation You must enter symbols other than brackets braces vertical bars and ellipsis points as shown. .

• Cơ sở dữ liệu
• contexts defined
• relationship between
• these—simple
• problems
• preferred management
• style
• complicated
• complex
• chaotic—require