Linux下Oracle 10g的安装
一、实验环境：虚拟机版本号：Workstation 6.5-7.0 virtual machineRedhat版本号：Red Hat Enterprise Linux Server release 5.4
一、实验环境：
虚拟机版本号：Workstation 6.5-7.0 virtual machine
RedHat版本号：Red Hat Enterprise Linux Server release 5.4 (Tikanga)
内核版本号：2.6.18-164.el5
以root用户登录linux系统。默认语言为英语。
Oracle 10g软件包。解压后负责到系统根目录下。
建立本地yum库，挂载光盘镜像文件。
三块磁盘sda、sdb、sdc，sdb1挂载到u01目录下，sdc1挂载到u02目录下。
二、预安装步骤：
本次试验的步骤依据Oracle官方网站提供的文档而做，，有个别步骤可以省略。
在linux下，安装Oracle时对系统的要求有点高，安装前需要对系统进行检查。
1、 检查物理内存和虚拟内存，物理内存至少为1G ，虚拟内存为物理内存的2倍。
（当物理内存小于2G时，虚拟内存是物理内存的2倍；物理内存大于2G时，虚拟内存在此基础加2即可）
物理内存
基本 - 512MB推荐 - 1024MB
内存交换分区相对于物理内存的比例
物理内存1024MB~2048MB - 200%
物理内存2049MB~8192MB - 100%
物理内存大于8192MB - 75%
2、检查tmp目录的大小。
/tmp目录所在的分区至少要有400MB空闲磁盘空间。
根据安装类型，安装Oracle服务器软件的分区至少要有1.5GB到3.5GB的空闲磁盘空间。
1.2GB磁盘空间用于数据库预配置文件系统存储(可选)
3、修改/etc/issue文件，将版本号改为4.4,目前Oracle官方只在5.0以下的版本上测试过。由于在后面安装Oracle时，会检查系统版本号，为了避免检测通不过，最好修改为4.4，修改后查看信息如图：
可以通过执行uname –r来查看内核版本号。
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
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1386
52
MySQL: An Introduction to the World's Most Popular Database
Apr 12, 2025 am 12:18 AM
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.
Why Use MySQL? Benefits and Advantages
Apr 12, 2025 am 12:17 AM
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.
How to solve the problem of closing oracle cursor
Apr 11, 2025 pm 10:18 PM
The method to solve the Oracle cursor closure problem includes: explicitly closing the cursor using the CLOSE statement. Declare the cursor in the FOR UPDATE clause so that it automatically closes after the scope is ended. Declare the cursor in the USING clause so that it automatically closes when the associated PL/SQL variable is closed. Use exception handling to ensure that the cursor is closed in any exception situation. Use the connection pool to automatically close the cursor. Disable automatic submission and delay cursor closing.
How to create cursors in oracle loop
Apr 12, 2025 am 06:18 AM
In Oracle, the FOR LOOP loop can create cursors dynamically. The steps are: 1. Define the cursor type; 2. Create the loop; 3. Create the cursor dynamically; 4. Execute the cursor; 5. Close the cursor. Example: A cursor can be created cycle-by-circuit to display the names and salaries of the top 10 employees.
How to create oracle dynamic sql
Apr 12, 2025 am 06:06 AM
SQL statements can be created and executed based on runtime input by using Oracle's dynamic SQL. The steps include: preparing an empty string variable to store dynamically generated SQL statements. Use the EXECUTE IMMEDIATE or PREPARE statement to compile and execute dynamic SQL statements. Use bind variable to pass user input or other dynamic values to dynamic SQL. Use EXECUTE IMMEDIATE or EXECUTE to execute dynamic SQL statements.
What to do if the oracle can't be opened
Apr 11, 2025 pm 10:06 PM
Solutions to Oracle cannot be opened include: 1. Start the database service; 2. Start the listener; 3. Check port conflicts; 4. Set environment variables correctly; 5. Make sure the firewall or antivirus software does not block the connection; 6. Check whether the server is closed; 7. Use RMAN to recover corrupt files; 8. Check whether the TNS service name is correct; 9. Check network connection; 10. Reinstall Oracle software.
How to read the oracle awr report
Apr 11, 2025 pm 09:45 PM
An AWR report is a report that displays database performance and activity snapshots. The interpretation steps include: identifying the date and time of the activity snapshot. View an overview of activities and resource consumption. Analyze session activities to find session types, resource consumption, and waiting events. Find potential performance bottlenecks such as slow SQL statements, resource contention, and I/O issues. View waiting events, identify and resolve them for performance. Analyze latch and memory usage patterns to identify memory issues that are causing performance issues.
How to use triggers for oracle
Apr 11, 2025 pm 11:57 PM
Triggers in Oracle are stored procedures used to automatically perform operations after a specific event (insert, update, or delete). They are used in a variety of scenarios, including data verification, auditing, and data maintenance. When creating a trigger, you need to specify the trigger name, association table, trigger event, and trigger time. There are two types of triggers: the BEFORE trigger is fired before the operation, and the AFTER trigger is fired after the operation. For example, the BEFORE INSERT trigger ensures that the age column of the inserted row is not negative.
