Home Database Mysql Tutorial Oracle备份与恢复系列

Oracle备份与恢复系列

Jun 07, 2016 pm 04:50 PM

创建测试用户snow,该用户拥有一个表,一个存储过程,一项任务起作用很简单,就是模拟一个用户每分钟像数据库插入一条时间戳,产

实验环境简介:
 创建测试用户snow,,该用户拥有一个表,一个存储过程,一项任务起作用很简单,就是模拟一个用户每分钟像数据库插入一条时间戳,产生数据库行为。在备份与恢复的过程中,该时间戳可以检测恢复操作是否顺利完成。

--------------------------------------推荐阅读 --------------------------------------

RMAN 配置归档日志删除策略

Oracle基础教程之通过RMAN复制数据库

RMAN备份策略制定参考内容

RMAN备份学习笔记

Oracle数据库备份加密 RMAN加密

--------------------------------------分割线 --------------------------------------
 
查看数据库名称和归档模式
 SYS@PRACTICE >col name for a10
 SYS@PRACTICE >col log_mode for a10
 SYS@PRACTICE >select name, log_mode from v$database;
 
NAME      LOG_MODE
 ---------- ----------
 PRACTICE  ARCHIVELOG
 
查看数据库版本
 SYS@PRACTICE >select * from v$version;
 
BANNER
 --------------------------------------------------------------------------------
 Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
 
数据文件
 SYS@PRACTICE >col name for a40
 SYS@PRACTICE >select name,bytes/1024/1024 MB from v$datafile;
 
NAME                                            MB
 ---------------------------------------- ----------
 /oradata/PRACTICE/system01.dbf                  710
 /oradata/PRACTICE/sysaux01.dbf                  570
 /oradata/PRACTICE/undotbs01.dbf                110
 /oradata/PRACTICE/users01.dbf                    5
 /oradata/PRACTICE/example01.dbf            313.125
 /oradata/PRACTICE/tools01.dbf                    20
 /oradata/PRACTICE/indx.dbf                      20
 
下面的语句也可以显示同样的数据
 select file_name, bytes/1024/1024 MB from dba_data_files;
 
查看联机重做日志的位置和大小
 SYS@PRACTICE >select member,bytes/1024/1024 MB from v$logfile lf, v$log l where lf.group# = l.group#;
 
MEMBER                                                              MB
 ------------------------------------------------------------ ----------
 /oradata/PRACTICE/redo03.log                                        50
 /oradata/PRACTICE/redo02.log                                        50
 /oradata/PRACTICE/redo01.log                                        50
 
查看控制文件的位置
 SYS@PRACTICE >col name for a100
 SYS@PRACTICE >select name from v$controlfile;
 
NAME
 --------------------------------------------------------------------------------
 /oradata/PRACTICE/control01.ctl
 /u01/app/oracle/fast_recovery_area/PRACTICE/control02.ctl
 
查看临时文件的位置及大小
 SYS@PRACTICE >select name,bytes/1024/1024 MB from v$tempfile;
 
NAME                                            MB
 ---------------------------------------- ----------
 /oradata/PRACTICE/temp01.dbf                    29
 

创建测试用户SNOW
 GRANT CONNECT, RESOURCE, UNLIMITED TABLESPACE TO snow IDENTIFIED BY snow;
 
ALTER USER snow DEFAULT  TABLESPACE TOOLS;
 ALTER USER snow TEMPORARY TABLESPACE TEMP;
 

创建时间戳表
 CONNECT snow/snow
 
DROP TABLE date_log;
 CREATE TABLE date_log (
 create_time DATE CONSTRAINT create_date_pk PRIMARY KEY USING INDEX TABLESPACE INDX,
 name varchar2(10)
 );
 
col segment_name for a15
 col TABLESPACE_NAME for a15
 select segment_name,tablespace_name from user_segments;
 
SEGMENT_NAME    TABLESPACE_NAME
 --------------- ---------------
 DATE_LOG        TOOLS
 CREATE_DATE_PK  INDX
 
基于时间戳表创建一个存储过程
 conn snow/snow
 CREATE OR REPLACE PROCEDURE create_date_log_row
 IS
 BEGIN
  INSERT INTO date_log VALUES (SYSDATE,'--');
 END;
 /
 
创建一个job来执行存储过程,来模拟数据库在“运行中”
 每分钟执行一次
 conn snow/snow
 VARIABLE jobno number;
 BEGIN
 -- Run the job every 1 minutes
    DBMS_JOB.SUBMIT(:jobno, 'snow.create_date_log_row;', SYSDATE, '(SYSDATE + 1/(24*60))');
    commit;
 END;
 /
 
SNOW@PRACTICE >print jobno
 
    JOBNO
 ----------
        24
 
SNOW@PRACTICE >col what for a30
 SNOW@PRACTICE >SELECT job, what FROM USER_JOBS;
 
      JOB WHAT
 ---------- ------------------------------
        24 snow.create_date_log_row;

更多详情见请继续阅读下一页的精彩内容:

更多详情见请继续阅读下一页的精彩内容:

linux

Statement of this Website
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

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 Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1664
14
PHP Tutorial
1268
29
C# Tutorial
1242
24
When might a full table scan be faster than using an index in MySQL? When might a full table scan be faster than using an index in MySQL? Apr 09, 2025 am 12:05 AM

Full table scanning may be faster in MySQL than using indexes. Specific cases include: 1) the data volume is small; 2) when the query returns a large amount of data; 3) when the index column is not highly selective; 4) when the complex query. By analyzing query plans, optimizing indexes, avoiding over-index and regularly maintaining tables, you can make the best choices in practical applications.

MySQL: Simple Concepts for Easy Learning MySQL: Simple Concepts for Easy Learning Apr 10, 2025 am 09:29 AM

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

MySQL: The Ease of Data Management for Beginners MySQL: The Ease of Data Management for Beginners Apr 09, 2025 am 12:07 AM

MySQL is suitable for beginners because it is simple to install, powerful and easy to manage data. 1. Simple installation and configuration, suitable for a variety of operating systems. 2. Support basic operations such as creating databases and tables, inserting, querying, updating and deleting data. 3. Provide advanced functions such as JOIN operations and subqueries. 4. Performance can be improved through indexing, query optimization and table partitioning. 5. Support backup, recovery and security measures to ensure data security and consistency.

MySQL's Role: Databases in Web Applications MySQL's Role: Databases in Web Applications Apr 17, 2025 am 12:23 AM

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

Explain the role of InnoDB redo logs and undo logs. Explain the role of InnoDB redo logs and undo logs. Apr 15, 2025 am 12:16 AM

InnoDB uses redologs and undologs to ensure data consistency and reliability. 1.redologs record data page modification to ensure crash recovery and transaction persistence. 2.undologs records the original data value and supports transaction rollback and MVCC.

MySQL: An Introduction to the World's Most Popular Database 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.

MySQL's Place: Databases and Programming MySQL's Place: Databases and Programming Apr 13, 2025 am 12:18 AM

MySQL's position in databases and programming is very important. It is an open source relational database management system that is widely used in various application scenarios. 1) MySQL provides efficient data storage, organization and retrieval functions, supporting Web, mobile and enterprise-level systems. 2) It uses a client-server architecture, supports multiple storage engines and index optimization. 3) Basic usages include creating tables and inserting data, and advanced usages involve multi-table JOINs and complex queries. 4) Frequently asked questions such as SQL syntax errors and performance issues can be debugged through the EXPLAIN command and slow query log. 5) Performance optimization methods include rational use of indexes, optimized query and use of caches. Best practices include using transactions and PreparedStatemen

Why Use MySQL? Benefits and Advantages 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.

See all articles