search
HomeDatabaseMysql TutorialOracle数据库导入导出实战

有一台Oracle服务器要进行导出、导入,以前接触过Oracle,可是对Oracle导出、导入没研究过,这下急坏我了,于是赶紧上网补了一下

有一台Oracle服务器要进行导出、导入,以前接触过Oracle,可是对Oracle导出、导入没研究过,这下急坏我了,于是赶紧上网补了一下。操作结果如下:

Oracle 数据导出导入
第一步 创建用户的表空间和数据文件
以oracle的用户的登录
[oracle@oracle ~]$ ps -ef|grep pmon|grep -v grep
oracle    4052    1  0 Jun23 ?        00:00:10 ora_pmon_zlzxdb
oracle    4488    1  0 Jun23 ?        00:00:07 ora_pmon_yibiaodb
由pmon进程可以看出我有两个实例,,多实例登录需要切换环境变量
[oracle@oracle ~]$ export ORACLE_SID=zlzxdb
[oracle@oracle ~]$ sqlplus / as sysdba    ## 以dba的身份登录
SQL> conn / as sysdba  链接到数据库中
已连接。
SQL> select username,default_tablespace from user_users;  查看当前登录的用户

USERNAME                      DEFAULT_TABLESPACE
------------------------------ ------------------------------
SYS                            SYSTEM

SQL> show parameter instance_name;    查看当前的实例

NAME                                TYPE
------------------------------------ --------------------------------
VALUE
------------------------------
instance_name                        string
zlzxdb
SQL> select name from v$database;      查看当前的数据库名称
 
NAME
---------
ZLZXDB

SQL> select name from v$datafile;  查询数据文件路径

create bigfile tablespace xmjidian datafile
‘/u01/app/oracle/oradata/zlzxdb/disk4/oracle_xmjidian_data.dbf’ size 2048M AUTOEXTEND ON;  创建大数据文件并且自动增长

create USER xmjidian IDENTIFIED BY xmjidian; 创建xmjidna并且设置密码为xmjidan。或者创建用户的指定用户的默认表空间使用下面的语法,也可以最后修改为用户的默认表空间
CREATE USER xmjidian IDENTIFIED BY xmjidian DEFAULT TABLESPACE xmjidna;
SQL>alter user xmjidian default tablespace xmjidian; 修改xmjidian用户默认的表空间为xmjidian

grant dba to xmjidian; 授予dba的权限,一般情况下这个授权太大,导入完数据之后可以收回dba的权限或者给用户直接授权
grant connect,resource,create any view to xmjidian;

创建导出导入目录并授予权限
创建导出目录
create directory exp_dir as ‘/u01/app/oracle/oradata/zlzxdb/share_data’;

给导出目录授予权限
grant read,write on directory exp_dir to xmjidian;

创建导入目录
create or replace directory data_dir as '/u01/app/oracle/oradata/zlzxdb/share_data ';

grant read,write on directory data_dir to xmjidian;

查询创建的导出导入文件目录以及名称
select * from dba_directories;

数据导出导入 
导出zlzxdb 下的
expdp zlzxdb/zlzxdb@zlzxdbrw schemas=zlzxdb dumpfile=oracle_xmjidian.dmp
DIRECTORY=exp_dir;

数据导出比较慢耐心等待

数据导入 
以xmjidian的用户导入数据

impdp  xmjidian/xmjidian@zlzxdb directory=data_dir dumpfile=oracle_xmjidian.dmp
  remap_schema=zlzxdb:xmjidian exclude=user full=y;

impdp yibiaodb01/yibiaodb01 DIRECTORY=dump_dir DUMPFILE=ybljt02_20150706.dmp REMAP_SCHEMA=ybljt02:yibiaodb01 remap_tablespace=ybljt02data:YIBIAODB01DATA01,ybljt02index:YIBIAODB01INDEX01

导出数据故障解决:
ORA-01653: 表 XMJIDIAN.LZ901017 无法通过 8192 (在表空间 ZLZXDATA01 中) 扩展 此类故障时因为zlzxdata01 表空间不足引起的,

解决:给zlzxdata01 增加表空间
ALTER TABLESPACE zlzxdata01 ADD DATAFILE  ‘/u01/app/oracle/oradata/zlzxdb/disk4/oracle_xmjidian_zlzxddata01.dbf' size 2048M AUTOEXTEND ON;

select * from dba_role_privs where grantee = 'ZLZXDB';  查看zlzxdb用户的权限

本文永久更新链接地址

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
MySQL: BLOB and other no-sql storage, what are the differences?MySQL: BLOB and other no-sql storage, what are the differences?May 13, 2025 am 12:14 AM

MySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand

MySQL Add User: Syntax, Options, and Security Best PracticesMySQL Add User: Syntax, Options, and Security Best PracticesMay 13, 2025 am 12:12 AM

ToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith

MySQL: How to avoid String Data Types common mistakes?MySQL: How to avoid String Data Types common mistakes?May 13, 2025 am 12:09 AM

ToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters

MySQL: String Data Types and ENUMs?MySQL: String Data Types and ENUMs?May 13, 2025 am 12:05 AM

MySQloffersechar, Varchar, text, Anddenumforstringdata.usecharforfixed-Lengthstrings, VarcharerForvariable-Length, text forlarger text, AndenumforenforcingdataAntegritywithaetofvalues.

MySQL BLOB: how to optimize BLOBs requestsMySQL BLOB: how to optimize BLOBs requestsMay 13, 2025 am 12:03 AM

Optimizing MySQLBLOB requests can be done through the following strategies: 1. Reduce the frequency of BLOB query, use independent requests or delay loading; 2. Select the appropriate BLOB type (such as TINYBLOB); 3. Separate the BLOB data into separate tables; 4. Compress the BLOB data at the application layer; 5. Index the BLOB metadata. These methods can effectively improve performance by combining monitoring, caching and data sharding in actual applications.

Adding Users to MySQL: The Complete TutorialAdding Users to MySQL: The Complete TutorialMay 12, 2025 am 12:14 AM

Mastering the method of adding MySQL users is crucial for database administrators and developers because it ensures the security and access control of the database. 1) Create a new user using the CREATEUSER command, 2) Assign permissions through the GRANT command, 3) Use FLUSHPRIVILEGES to ensure permissions take effect, 4) Regularly audit and clean user accounts to maintain performance and security.

Mastering MySQL String Data Types: VARCHAR vs. TEXT vs. CHARMastering MySQL String Data Types: VARCHAR vs. TEXT vs. CHARMay 12, 2025 am 12:12 AM

ChooseCHARforfixed-lengthdata,VARCHARforvariable-lengthdata,andTEXTforlargetextfields.1)CHARisefficientforconsistent-lengthdatalikecodes.2)VARCHARsuitsvariable-lengthdatalikenames,balancingflexibilityandperformance.3)TEXTisidealforlargetextslikeartic

MySQL: String Data Types and Indexing: Best PracticesMySQL: String Data Types and Indexing: Best PracticesMay 12, 2025 am 12:11 AM

Best practices for handling string data types and indexes in MySQL include: 1) Selecting the appropriate string type, such as CHAR for fixed length, VARCHAR for variable length, and TEXT for large text; 2) Be cautious in indexing, avoid over-indexing, and create indexes for common queries; 3) Use prefix indexes and full-text indexes to optimize long string searches; 4) Regularly monitor and optimize indexes to keep indexes small and efficient. Through these methods, we can balance read and write performance and improve database efficiency.

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

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),