在Oracle Linux 5中,我们可以使用使用Oracle validated Configuration 来加速部署Oracle 环境,关于Validated Configurations参
在Oracle Linux 5中,我们可以使用使用Oracle validated Configuration 来加速部署Oracle 环境,,关于Validated Configurations参考:
OracleValidated Configurations 安装使用 说明
在Oracle Linux 6中,没有推出oracle validate包,而是推出了oracle-rdbms-server-11gR2-preinstall包。
一.官网说明
Oracle RDBMS Server 11gR2 Pre-Install RPMfor Oracle Linux 6 has been released
https://blogs.oracle.com/linux/entry/oracle_rdbms_server_11gr2_pre
Now that the certificationof the Oracle Database 11g R2 with Oracle Linux 6 and the UnbreakableEnterprise Kernelhasbeen announced, we are glad to announce theavailability of oracle-rdbms-server-11gR2-preinstall, the Oracle RDBMSServer 11gR2 Pre-install RPM package (formerly known as oracle-validated).Designed specifically for Oracle Linux 6, this RPM aids in the installation ofthe Oracle Database.
In order toinstall the Oracle Database 11g R2 on Oracle Linux 6, your system needs to meeta few prerequisites, as outlined in the . Using the Oracle RDBMS Server 11gR2 Pre-install RPM,you can complete most of the pre-installation configuration tasks. which is nowavailable from the Unbreakable LinuxNetwork, or via the Oracle publicyum repository.
The pre-install package is available forx86_64 only. Specifically, the package:
(1) Causes the download andinstallation of various software packages and specific versions needed fordatabase installation, with package dependencies resolved via yum
--下载和安装各种依赖包
(2) Creates theuser oracle and the groups oinstall and dba, which arethe defaults used during database installation
(3) Modifies kernel parametersin /etc/sysctl.conf to change settings for shared memory, semaphores,the maximum number of file descriptors, and so on
(4) Sets hard and soft shellresource limits in /etc/security/limits.conf, such as the number of openfiles, the number of processes, and stack size to the minimum required based onthe Oracle Database 11g Release 2 Server installation requirements
(5) Sets numa=off in thekernel boot parameters for x86_64 machines
2.1 进入yum 配置目录
[root@rac1 ~]# cd /etc/yum.repos.d/
2.2 下载yum 配置
[root@rac1 yum.repos.d]# wget
--2012-04-12 20:48:00--
Resolving public-yum.oracle.com...141.146.44.34
Connecting topublic-yum.oracle.com|141.146.44.34|:80... connected.
HTTP request sent, awaiting response... 200OK
Length: 1461 (1.4K) [text/plain]
Saving to: “public-yum-ol6.repo”
100%[======================================>]1,461 --.-K/s in 0s
2012-04-12 20:48:01 (30.8 MB/s) -“public-yum-ol6.repo” saved [1461/1461]
2.3 查看yum 配置
[root@rac1 yum.repos.d]# cat public-yum-ol6.repo
[ol6_latest]
name=Oracle Linux $releasever Latest($basearch)
baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL6/latest/$basearch/
gpgkey=http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6
gpgcheck=1
enabled=1
[ol6_ga_base]
name=Oracle Linux $releasever GAinstallation media copy ($basearch)
baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL6/0/base/$basearch/
gpgkey=http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6
gpgcheck=1
enabled=0
[ol6_u1_base]
name=Oracle Linux $releasever Update 1installation media copy ($basearch)
baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL6/1/base/$basearch/
gpgkey=http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6
gpgcheck=1
enabled=0
[ol6_u2_base]
name=Oracle Linux $releasever Update 2installation media copy ($basearch)
baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL6/2/base/$basearch/
gpgkey=http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6
gpgcheck=1
enabled=0
[ol6_UEK_latest]
name=Latest Unbreakable Enterprise Kernelfor Oracle Linux $releasever ($basearch)
baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL6/UEK/latest/$basearch/
gpgkey=http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6
gpgcheck=1
enabled=0
[ol6_UEK_base]
name=Unbreakable Enterprise Kernel forOracle Linux $releasever ($basearch)
baseurl=http://public-yum.oracle.com/repo/OracleLinux/OL6/UEK/base/$basearch/
gpgkey=http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6
gpgcheck=1
enabled=0
[root@rac1 yum.repos.d]#

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

MySQL is an open source relational database management system suitable for data storage, management, query and security. 1. It supports a variety of operating systems and is widely used in Web applications and other fields. 2. Through the client-server architecture and different storage engines, MySQL processes data efficiently. 3. Basic usage includes creating databases and tables, inserting, querying and updating data. 4. Advanced usage involves complex queries and stored procedures. 5. Common errors can be debugged through the EXPLAIN statement. 6. Performance optimization includes the rational use of indexes and optimized query statements.

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

InnoDB's lock mechanisms include shared locks, exclusive locks, intention locks, record locks, gap locks and next key locks. 1. Shared lock allows transactions to read data without preventing other transactions from reading. 2. Exclusive lock prevents other transactions from reading and modifying data. 3. Intention lock optimizes lock efficiency. 4. Record lock lock index record. 5. Gap lock locks index recording gap. 6. The next key lock is a combination of record lock and gap lock to ensure data consistency.

The main reasons for poor MySQL query performance include not using indexes, wrong execution plan selection by the query optimizer, unreasonable table design, excessive data volume and lock competition. 1. No index causes slow querying, and adding indexes can significantly improve performance. 2. Use the EXPLAIN command to analyze the query plan and find out the optimizer error. 3. Reconstructing the table structure and optimizing JOIN conditions can improve table design problems. 4. When the data volume is large, partitioning and table division strategies are adopted. 5. In a high concurrency environment, optimizing transactions and locking strategies can reduce lock competition.

In database optimization, indexing strategies should be selected according to query requirements: 1. When the query involves multiple columns and the order of conditions is fixed, use composite indexes; 2. When the query involves multiple columns but the order of conditions is not fixed, use multiple single-column indexes. Composite indexes are suitable for optimizing multi-column queries, while single-column indexes are suitable for single-column queries.

To optimize MySQL slow query, slowquerylog and performance_schema need to be used: 1. Enable slowquerylog and set thresholds to record slow query; 2. Use performance_schema to analyze query execution details, find out performance bottlenecks and optimize.

MySQL and SQL are essential skills for developers. 1.MySQL is an open source relational database management system, and SQL is the standard language used to manage and operate databases. 2.MySQL supports multiple storage engines through efficient data storage and retrieval functions, and SQL completes complex data operations through simple statements. 3. Examples of usage include basic queries and advanced queries, such as filtering and sorting by condition. 4. Common errors include syntax errors and performance issues, which can be optimized by checking SQL statements and using EXPLAIN commands. 5. Performance optimization techniques include using indexes, avoiding full table scanning, optimizing JOIN operations and improving code readability.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Atom editor mac version download
The most popular open source editor

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

WebStorm Mac version
Useful JavaScript development tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.