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Oracle创建数据库

Jun 07, 2016 pm 05:29 PM
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本文主要通过oracle联机文档学习创建数据库的知识,具体操作还要经常查看联机文档,如果用户是操作系统管理员的身份认证的,orac

创建数据库有三种方式:

1:用Oracle dbca(database configuration assistant)创建数据库

2: 手工创建数据库(这个比较复杂,需要手工配置参数)

3:使用oracle managed Filed 创建数据库

本文主要通过oracle联机文档学习创建数据库的知识,具体操作还要经常查看联机文档 

如果想创建数据库首先要了解oracle的命名规则:

关于oracle的命名规则 optimal Flexible Architecture (优化灵活体系) 这一部分有详细讲述,参见oracle 联机文档这一部分

关于oracle的认证方法: oracle有自己的一套认证方法: 联机文档上讲的很清楚:

1:如果用户是操作系统管理员的身份认证的,oracle就不用在认证了,因为用户已经获得了操作系统的权限,自然有oracle操作权限。

2:用户是通过客户端连接到oracle服务器上的,所以不具有操作系统权限,要进行oracle的认证的,具体就是需要输入用户名和密码

 

上图: oracle的认证方法:

 

关于 Net Configuration Assistant 中 的 TCP 和 TCPS区别:

TCPS 就是安全的TCP security的意思 ,,通常用TCP链接 走口令文件认证

 

1:通过dbca创建数据库:

傻瓜式创建:

首先打开 dbca (database configuration assistant)

OS environment 说明:
ORACLE_BASE
ORACLE_HOME
ORACLE_SID
ORA_NLS33 设置oracle的字符集
PATH 方便执行oracle命令
LD_LIBRARY_PATH
查询以上环境变量的意思: 这几个参数说明需要单独开一篇博文说明一下。

以前oracle安装的时候 这些环境变量需要提前设置

上安装过程图:

 

以上步骤就是使用dbca来创建数据库: PS 没有技术含量,一般不会报错,如果报错就把创建的数据库删除掉,上面的创建过程中有一项可以删除数据库

这里不再细说。

选择删除数据库-->下一步:


手工删除方法:
1:参数文件删除
2:oradata 中的 该数据库的文件删掉
3:admin 目录下的 该数据库的信息也删除掉

如果利用dbca删除数据库 以上三个目录中对应的文件会自动删除掉。

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