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Oracle Database 10g: Flash back version query

Oracle No setting required to immediately recognize all changes to a row In the Oracle9i Database, we saw that it introduced a "time Machine" in the form of a flashback query. This feature allows the DBA to see the column value at a specific time,

SQL injection (SQL injection) Introduction and SQL Injection attack detection Tool

1. About SQL injection So far, I have not seen who wrote a very complete article, or a very mature solution (can do a lot of people, the problem is not spread out, very sorry) I simply said a few, hope to inspire people to think, play a role in the

Considerations for Oracle Rebuild tables

I. Overview Some time ago, a DBA friend after completing the Rebuild table (rename) work, the next morning business is not operational, the data can not be inserted restrictions and errors, later analysis found that the reason for the error is the

Oracle Enterprise Manager (OEM) Common problem solving

Oracleenterprisemanager (Oracle Enterprise Manager, abbreviation OEM) provides management services for managing distributed environments through a set of Oracle programs. OEMs include a set of DBA tools, a repository, and a graphical display of the

MySQL stores programs, functions, triggers, and replication knowledge Encyclopedia

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Do MySQL 5.1 stored programs and functions work for replication? Yes, the standard behavior performed in stored programs and functions is copied from the primary MySQL server to the from server. Can the stored programs and functions created on the

Analysis of common difficult problems in starting Oracle

oracle| problems to start Oracle common problem Analysis (2003-10-1) This article is from "Network Administrator World" 2003 phase 10th "Fault Diagnosis" column The startup and shutdown of instances and databases is one of the important

The installation configuration process for WebSphere under Linux

A Installation of Linux No special requirements, follow the default installation can be. Two Installation of Websphere 1. Log on to the Linux server with root user. (WebSphere requirements are installed with root privileges) 2. Put the WebSphere

Linux and Solaris build Apache virtual Root environment (2)

4.9 Here is a small Perl script that removes most of the comments from the generated configuration file and forms a simplified file. 4.10 Giving ownership of the Htdocs directory tree to the owner of the web directory tree root# Chown-r

Performance optimization for back-end Systems (iii) SQL optimization

Yesterday I introduced to you how to find bad code, how to gracefully implement an application of the monitoring program. Of course, after discovering the bad code, we still have to find a way to get rid of it, perhaps it will be very stubborn. Tell

Overview of Oracle Table join methods

The connections between Oracle tables are divided into three types: 1. Inner connection (natural connection) 2. Outer connection (1) Left OUTER join (the table on the left is unrestricted) (2) Right outer join (the table on the right is

The role and description of password file in Oracle

Oracle|word Database-built users cannot authenticate to the database until the database is started. The password file holds the username and password of the Sysdba/sysoper user, allows the user to authenticate by password file, log in before the

Four rules that a DBA must understand

1. Backup is more important than anything We need to know that the system is always going to crash, there is no valid backup just waiting for the day to die! I often joke that the only thing that will wake the DBA in a dream is that there is no

HP-UX rx2600 b.11.22 U IA64 installation oracle9i 9.2 for IA64 notes

Oracle HP-UX rx2600 b.11.22 U IA64 installation oracle9i 9.2 for IA64 notes Author: Liu Yingbo Time: 2003-11-20 Mail:liuyingbo@126.com, please correct me. Reprint please indicate the source and the author 1. Build Users and Groups Groupadd

MySQL DBA system Learning (19) Implementing MySQL read operation load Balancing

Configure mysql+lvs+keeplived to achieve load balancing for MySQL read operations Environment: Test1192.168.46.131master Test2192.168.46.130slave Backup Test Library TEST3 Scheduler 1, installation and configuration keepalived First installs

Environment configuration scripts prior to Oracle installation

The simplest type of writing is a fool Oracle_database_linux32.zip is the name of the installation package Configuration is simpler and more simple, so no variables are used #!/bin/bash ################### Yum and rpm ###################

oracle10g + SOLARIS9 for x86 + VMware installation steps

Oracle Turn from: CSDN Oracle recently released the latest version of oracle10g for Solaris x86, so it was tested and installed in VMware's SOLARIS9. This article simply records the basic steps of the installation and omits the commands for

The value of DBA in enterprise sustainable development

In today's highly competitive market environment, cost control is undoubtedly a very important part of each enterprise to enhance competitiveness, as many competitors will provide homogeneous products and services, enterprises must start from the

Oracle differences on UNIX and WINDOWS2000 PARTIII

Oracle|unix|window ORACLE differences on UNIX and WINDOWS2000 III Ian Adam, SAIC Ltd David Stien, SAIC Ltd Translation: Fenng www.ITPub.net Part III Installation of ORACLE Oracle8i is installed through the new Java-based Oracle Universal installer

Oracle Solaris 10 Installation Oracle 10g tutorial

First, the normal way to install the new This article originates from: http://koumm.blog.51cto.com 1. Solaris Installation Environment Preparation With Oracle Solaris 10 installation, installation process graphical interface installation,

Repairing bad blocks via Rman in Oracle

Oracle database bad blocks are repaired through the DBV and Rman Blockrecover. (1) When the Rman backup, Alert.log reported the following error: Fri 2 12:41:36 2010 Hex Dump of (file, block 2718618) in trace

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