Oracle Pen questions Oracle DBA face questions and answers (foreign companies)Oracle Database Pen Test DBAOracle Interview Pen test for international large companiesOracle Database DBA Interview Questions1. How many memory layers are in the shared pool?2. How did you find the RMAN catalog if a particular archive log has been backed-up?3. How can I tell how much i
Tags: http using os IO file data for 2014Recently depressed character set July 31, 2014 16:32:58This article focuses on the following sections: How to view queries for Oracle character sets, modify set character sets, and common Oracle UTF8 character set and Oracle exp character set issues.I. What is the Oracle charact
About OracleOracle Database, also known as Oracle RDBMS, or Oracle. is a relational database management system of Oracle Corporation. It is a leading product in the field of database. It can be said that Oracle database system is currently the world's popular relational database management system, System portability, e
1. Oracle introduction Oracle is the first word for English translation of Oracle (oracleboneinscriptions) Unearthed from Yin Yu. Oracle is the world's largest supplier of information management software and services. Founded in 1977, Oracle is headquartered in Redwoodshore,
I. Trajectory
Ii. Oracle Introduction
Oracle is now the world's largest database provider,Programming LanguageProvider and application software provider, which is equivalent to Microsoft.
Oracle is known as the oracle in ancient Greek mythology. It refers to the darling of God. In the period of business and we
I. Problem Description
Installation environment: Oracle Linux 6.1
Database: 10.2.0.1
When Oracle 10g RAC is installed, an error is reported when root. Sh is executed on the first node, as shown below:
[Root @ Rac1 ~] #/U01/APP/10.2.0/GRID/root. Sh
Warning: directory '/u01/APP/10.2.0' is notowned by root
Warning: directory '/u01/app' is not ownedby Root
Warning: directory '/u01' is not owned byroot
Checki
Lab environment: Oracle 11g R2 RAC (11.2.0.3.5) Oracle Enterprise Linux 5.6x86
1. Create an ASM disk group and mount the disk on two nodes. Then, partition the disk on the first node. [root @ Rac1 ~] # Fdisk-ldisk/dev/SDE: 2147 MB, 2147483648 bytes255 heads, 63 sectors/track, 261 cylindersunits = cylinders of 16065*512 = 8225280 bytes
Device boot start end blocks ID system/dev/sde1 1 261 2096451 83 Linux
Cr
[Architecture, 13] oracle Character Set details, oracle Character Set1. A simple understanding of character sets: tables corresponding to characters and encodings. When the software has a character set, it uses its own character set. If the software does not have a character set, it uses the OS character set.Ii. Character Set usage: 1. oracle has two character se
Oracle Video Tutorial Goals Oracle Video tutorial, wind Brother this set of Oracle Tutorial Training learning Oracle parameter parameter file and Oracle control file Controlfile in depth, how to modify the parameter file, the role of Or
Build a GoldenGate bidirectional replication environment from Oracle to Oracle
Objective: To build a Goldengate two-way replication environment (DDL + DML supported) from Oracle to Oracle ).
Environment:
OS: Red Hat Enterprise Linux Server release 5.5 (Tikanga)
DB: Oracle D
TNS-00510 Internal Limit restriction exceeded
Cause Too Many files or sockets open simultaneously (or some other resource has).
Action for further details, trace the operation for protocol details.
TNS-12500 Tns:listener failed to start a dedicated server process
Cause the process of starting up a dedicated server process failed. The executable could is found or the environment may is set up incorrectly.
Action Turn on tracing in the ADMIN level and re-execute the operation. Verify that's
From today on, I will also enter the ranks of oracle. Oracle has always had a sense of reverence. Oracle is always different from other databases. Maybe it was because I was scared by the teacher during my freshman year. I tried it a little today. It seems that Oracle is not as sacred as you think. Haha. This is a lear
The shared pool in the SGA consists of a library cache, a dictionary cache (Dictionary cache), a buffer for parallel execution messages, and a control structure.
The size of the Shared POOL is determined by the parameter shared_pool_size. 9i, the default value of this parameter is 8M under 32-bit system, and the default value of 64-bit system is 64M. The maximum is 4G. 10g can be adjusted automatically by Sga_target parameters.
Memory management for shared pool is achieved through a modified L
The advantages of this method: 1, the integration of Oracle client within the program, no need to configure users themselvesThe disadvantage of this method: 2, increase the volume of the package (Oracle Instant client itself has a few 10 megabytes size)Here's how it's implemented.
0. First, download the corresponding version of Oracle Instant client package f
Sort out the key points of Data Query Optimization in Oracle databases, and query oracle Data
The most basic task of a database is to store and manage data. The only database feature that an end user can see is its performance: the speed at which the database processes the results of a specified query, and return the results to the tools and applications used by the user. From the perspective of Application
Previously, it was very easy to install and use ORACLE on 32-bit Windows 7. But now the system has been upgraded. tools like PL/SQL developer or navicat premium cannot connect to 64-bit oracle. 32-bit oracle can be installed in a 64-bit system, but it is not suitable. I have seen many methods on the Internet and succeeded. Now I will propose my method.
Get
Install Oracle 9.2.0 in Linux as 2.1
As early as in the Forum, many colleagues praised how Redhat as 2.1 was easy to use and never had a chance to try this trendy environment. Since the Oracle OCM test environment is also RH as 2.1, I want to install it more. I did not think that this test allowed me to install the OS four times and Oracle three times. It is real
Oracle BBED (oracle block browser and editor tool)Installation and Use
BBEDTools can be used to change dataBlockBut not officially supported.
The installation process is as follows:
$Cd $ ORACLE_HOME/rdbms/lib
$Ls-al * bb *. o
-Rw-r --1 oracleOinstall1671 May 10 2008Sbbdpt. o
-Rw-r --1 oracleOinstall900 May 10 2008Ssbbded. o
$Make-f ins_rdbms.mk $ ORACLE_HOME/rdbms/lib/bbed
Linking BBED utility (bbed)
Rm
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.