search
HomeDatabaseMysql Tutorialoracle 方便快捷的数据导入/导出命令

一、数据库的导出 :3种模式:全库导出,用户导出,表导出。 1. 命令行-全库导出 expuserid=system/system@My Oracle full=y file=(c:/tmp/2004020601.dmp,c:/tmp/2004020602.dmp, c:/tmp/2004020603.dmp) filesize=2GB log=c:/tmp/20040206.log 备注:该命令

一、数据库的导出 :3种模式:全库导出,用户导出,表导出。
1. 命令行-全库导出 
exp userid=system/system@MyOracle full=y file=(c:/tmp/2004020601.dmp,c:/tmp/2004020602.dmp, c:/tmp/2004020603.dmp) filesize=2GB
  log=c:/tmp/20040206.log
  
备注:该命令导出全库数据,导出到多个文件中,每个文件最大2GB, exp 只生成最少的导出文件,譬如导出的数据不足2GB, 
   exp 只生成/tmp/2004020601.dmp 如果file 列表中的文件太少,
   不能存放所有的导出数据,exp 会提示用户输入文件名,导出过程记录日志.
   
   
2. 命令行-完全导出
exp userid=system/system@MyOracle full=y inctype=complete
  file=(/tmp/2004020601.dmp, /tmp/2004020602.dmp, /tmp/2004020603.dmp)
  filesize=2GB log=/tmp/20040206.log
  
  该命令完全导出全库数据,导出到多个文件中每个文件最大2GB,导出过程记录日志.


说明: 全库导出时,增量导出类型缺省为(complete)完全,所以1 和2导出的结果是完全一样的.

3. 命令行-累积导出
   exp userid=system/system@MyOracle full=y inctype=cumulative
  file=(/tmp/2004020601.dmp, /tmp/2004020602.dmp) filesize=2GB
  log=/tmp/20040206.log
  
  该命令累积导出全库数据,导出到多个文件中,每个文件最大2GB,导出过程记录日志.
  
  说明:  如果选择了增量导出类型,则必需选择full=y,即只能在全库导出模式下进行完全累积或增量导出.

4. 命令行-增量导出
  
  exp userid=system/system@MyOracle full=y inctype=incremental
  file=(/tmp/2004020601.dmp, /tmp/2004020602.dmp) filesize=2GB
  log=/tmp/20040206.log
  
  该命令累积导出全库数据,导出到多个文件中,每个文件最大2GB,导出过程记录日志.


5. 命令行用户导出
  
  exp userid=cams/cams@cams owner=cams file=(/tmp/2004020601.dmp,
  /tmp/2004020602.dmp, /tmp/2004020603.dmp) filesize=2GB
  log=/tmp/20040206.log
  
  该命令导出cams 用户数据导出到多个文件中每个文件最大2GB 导出过程记录日志
  
6. 命令行表导出
  
  exp userid=cams/cams@cams tables=(tbl_log, tbl_user_log) file=(/tmp/2004020601.dmp, /tmp/2004020602.dmp) filesize=2GB
  log=/tmp/20040206.log
  
  该命令导出cams 用户的两个表的数据,导出到多个文件中,每个文件最大2GB,导出过程记录日志. 
 


二、数据库的导入
1、命令行导入表:有3种模式,a: tables(),  b:full=y, c:fromuser(),touser()
   a)  imp userid=system/system@MyOracle file=c:/export/user_group.dmp log=c:/export/user_group.dmp tables(tbl_user,tbl_group)
   b)  imp userid=system/system@MyOracle file=c:/export/user_group.dmp log=c:/export/user_group.dmp full=y
   c)  imp userid=system/system@MyOracle file=c:/export/user_group.dmp log=c:/export/user_group.dmp fromuser=sanmyd touser=system 
   
2、命令行导入用户:
   imp userid=system/system@MyOracle file=c:/export/user_group.dmp log=c:/export/user_group.dmp fromuser=(sanmyd) touser=(system)
   
3、命令行全库导入
    imp userid=system/system@MyOracle file=c:/export/user_group.dmp log=c:/export/user_group.dmp full=y ignore=y

 

 

 

三、编写BAK文件,订时导出数据

   @echo off

if exist "d:\smqdDB_bak" goto doExp

md "d:\smqdDB_bak"

:doExp

exp sanmyd/sanmyd@DEMO_192.168.2.102file='D:\smqdDB_bak\%date:~0,4%%date:~5,2%%date:~8,2%.dmp'

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
oracle怎么查询所有索引oracle怎么查询所有索引May 13, 2022 pm 05:23 PM

方法:1、利用“select*from user_indexes where table_name=表名”语句查询表中索引;2、利用“select*from all_indexes where table_name=表名”语句查询所有索引。

什么是oracle asm什么是oracle asmApr 18, 2022 pm 04:16 PM

oracle asm指的是“自动存储管理”,是一种卷管理器,可自动管理磁盘组并提供有效的数据冗余功能;它是做为单独的Oracle实例实施和部署。asm的优势:1、配置简单、可最大化推动数据库合并的存储资源利用;2、支持BIGFILE文件等。

oracle全角怎么转半角oracle全角怎么转半角May 13, 2022 pm 03:21 PM

在oracle中,可以利用“TO_SINGLE_BYTE(String)”将全角转换为半角;“TO_SINGLE_BYTE”函数可以将参数中所有多字节字符都替换为等价的单字节字符,只有当数据库字符集同时包含多字节和单字节字符的时候有效。

Oracle怎么查询端口号Oracle怎么查询端口号May 13, 2022 am 10:10 AM

在Oracle中,可利用lsnrctl命令查询端口号,该命令是Oracle的监听命令;在启动、关闭或重启oracle监听器之前可使用该命令检查oracle监听器的状态,语法为“lsnrctl status”,结果PORT后的内容就是端口号。

oracle怎么查询数据类型oracle怎么查询数据类型May 13, 2022 pm 04:19 PM

在oracle中,可以利用“select ... From all_tab_columns where table_name=upper('表名') AND owner=upper('数据库登录用户名');”语句查询数据库表的数据类型。

oracle怎么删除sequenceoracle怎么删除sequenceMay 13, 2022 pm 03:35 PM

在oracle中,可以利用“drop sequence sequence名”来删除sequence;sequence是自动增加数字序列的意思,也就是序列号,序列号自动增加不能重置,因此需要利用drop sequence语句来删除序列。

oracle查询怎么不区分大小写oracle查询怎么不区分大小写May 10, 2022 pm 05:45 PM

方法:1、利用“LOWER(字段值)”将字段转为小写,或者利用“UPPER(字段值)”将字段转为大写;2、利用“REGEXP_LIKE(字符串,正则表达式,'i')”,当参数设置为“i”时,说明进行匹配不区分大小写。

Oracle怎么修改sessionOracle怎么修改sessionMay 13, 2022 pm 05:06 PM

方法:1、利用“alter system set sessions=修改后的数值 scope=spfile”语句修改session参数;2、修改参数之后利用“shutdown immediate – startup”语句重启服务器即可生效。

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

DVWA

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

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Atom editor mac version download

Atom editor mac version download

The most popular open source editor