Oracle定期网上讲座查询
Oracle会定期举行一些网上讲座,由Oracle技术专家进行演讲。您只需要注册就可以参加这些讲座。 这些讲座包括技术讲解、最佳实践经验分享、数据库最新版本的新特性介绍等。每个讲座都会提供视频讲解,并...
oracle 的各种名字及更改方法
1.db_name :建库的时候指定,记录在控制文件中,不容易修改主(需要重建牢控制文件)修改数据库名字:1)、获得重建控制文件语句alter database backup controlfile to trace; udumpTRACE控制文件包括两个...
ORACLE10G无归档文件下使用BBED工具进行完全恢复
本文引用了CUUG陈老师的交流内容,这里感谢CUUG提供的学习机会。 1.BBED简介 ORACLE内部工具,全称为Block Brower and EDitor Tool,用来直接查看和修改数...
oracle10g在windows下命令行启动
Microsoft Windows [版本 6.1.7601]版权所有 (c) 2009 Microsoft Corporation。保留所有权利。C:\Users\yrs>lsnrctlLSNRCTL for 32-bit Windows: Version 10.2.0.3.0 - Production on 25-8月 -2012 22:4...
Troubleshooting Performance Issues [ID 1377446.1]
In this DocumentPurposeTroubleshooting Steps General Performance AWR Generation AWR Interpretation Buffer Busy Contention Cache Buffers Chains Latch Contention Connection Timeouts: Errors ORA...
How To Investigate Slow or Hanging Database Performance Issues [ID 1362329.1]
In this DocumentGoalFix Database is Slow: Is the performance problem constant or does it occur at certain times of the day ? Database is Slow: Does the problem affect one session, several sess...
Oracle Performance Diagnostic Guide (OPDG) [ID 390374.1]
Oracle Performance Diagnostic Guide Welcome to the Oracle Performance Diagnostic Guide This guide is intended to help you resolve query tuning, hang/locking, and slow database iss...
oracle10g human_resources
下载后解压到$ORACLE_HOME/demo/schema/human_resources/目录下,在SYS用户下运行$ORACLE_HOME/demo/schema/human_resources/hr_main.sql来创建jpg改为rar...
my glogin
vi $ORACLE_HOME/sqlplus/admin/glogin.sql #defineSET PAGESIZE 80SET LINESIZE 170SET TIMING ONSET TIME ONSET VERIFY OFFSET EDITFILE /tmp/bufferfile.sqlDEFINE _EDITOR=viALTER SESSION SET nls...
SQL*PLUS维护系统变量
转自:http://blog.chinaunix.net/u2/66903/showart_1852729.html SQL*PLUS维护系统变量,也称SET变量,利用它可为SQL*PLUS交互建立一个特殊的环境,如:设置NUMBER数据的显示宽度;设置每页的行数;设置列的宽度...
寻找备份的控制文件
备份控制文件两种方法:1.方法一 生成trace 文件用于控制文件的重建 alter database backup controlfile to trace;生成的trace文件在user_dump_dest参数指定的目录中的含此连接数据库的操作系统...
checkpoint扫盲(转)
checkpoint扫盲什么是checkpoint在数据库系统中,写日志和写数据文件是数据库中IO消耗最大的两种操作,在这两种操作中写数据文件属于分散写,写日志文件是顺序写,因此为了保证数据库的性能,通常数据库都...
增量checkpoint(转)
发布者:马齿苋增量checkpoint增量checkpoint工作过程因为每次完全的checkpoint都需要把buffer cache所有的脏块都写入到数据文件中,这样就是产生一个很大的IO消耗,频繁的完全checkpoint操作很对系...
ORACLE STARTUP ORA-00600 ORA-24324 ORA-01041
OS:REDHAT AS 4.6DB:ORACLE 10.2.0.1 SQL> startup nomountORA-00600: internal error code, arguments: [keltnfy-ldmInit], [46], [1], [], [], [], [], []SQL> startupORA-24324: service ha...
oracle10g online docs--create database statments's error
使用 Oracle® Database Administrator's Guide10g Release 2 (10.2)Part Number B14231-02 CREATE DATABASE mynewdb USER SYS IDENTIFIED BY pz6r58 USER SYSTEM IDENTIFI...
ORA-01092: ORACLE instance terminated. Disconnection forced
OS:REDHAT AS 4.6DB:ORACLE 10.2.0.1 CREATE DATABASE mydb*ERROR at line 1:ORA-01092: ORACLE instance terminated. Disconnection forced SQL> !oerr ora 109201092, 00000, "ORACLE instance ...
ORA-30014: operation only supported in Automatic Undo Management mode
OS:REDHAT AS 4.6DB:ORACLE 10.2.0.1 SQL> start cr_db.sqlCREATE DATABASE mydb*ERROR at line 1:ORA-30014: operation only supported in Automatic Undo Management modeSQL> ![oracle@localhost sc...
RedHat AS 4.6下 ORACLE10G 安装 缺少gcc-3.4.3-22.1.EL4解决办法
在RedHat安装光盘中RedHat/RPMS目录 下 顺序安装[root@localhost RPMS]# rpm -ivh glibc-kernheaders-2.4-9.1.100.EL.i386.rpmPreparing... ...
oracle 各版本数据库管理员账户默认密码
1.oracle 8i SYSTEM : MANAGERSYS : CHANGE_ON_INSTALLSCOTT : TIGERBLAKE:PAPERCLARK:CLOTHCTXSYS:CTXSYSDBSNMP:DBSNMPJONES:STEELMDSYS:MDSYSMTSSYS:MTSSYSORDPLUGINS:ORDPLUGINSORDSYS:ORDSYS...
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