Database Administrator

BUG 3028673 -- Oracle on aix does not share your const structs-PER PROCESS MEMORY OVERHEAD Oracle on ibm aix platforms (AIX 5L and 4.3.3) use a large amount of memory per dedicated connection. for Oracle 9.2 on AIX 5L the memory required per idle

When I checked the show processlist; statement of MySQL today, I found that several sending data statements were caused by query statements. I checked it online and said it may be caused by the key_buffer setting. The setting was modified and it

1. Download The Oracle_database_10.2.0.1.0 for linux Installer:: Oracle official website (pay attention to the version number of the Installation File) 2. query the kernel version and required software packages to prepare the software environment

I always thought that MySQL would randomly query several pieces of data. SELECT * FROM'Table'ORDER BY RAND() LIMIT5 You can.However, the test results show that the efficiency is very low. It takes more than 8 seconds to query 5 data records in a

Lab environment:Red Hat Enterprise Linux Server release 5ORALCE 10g 10.2.0.1 I. Disk planning and partitioningMy lab machine has three hard disks, sda, sdb, and sdc. Sda is only used to install the operating system and application software. sdb is

# Oracle environment variables defined# (Write it below and hide it here) # Database User InformationUSERNAME = database USERNAME (Information Hiding)PASSWORD = Database PASSWORD (Information Hiding) # Back fileFILE_PREFIX = Oracle _ # FTP Server

In Linux, if no prompt is displayed when the listener is started, check whether the content format of your/etc/hosts file is correct. If not, change it; after the change, start the lsncrtl start command again, may prompt TNS-01150 and TNS-01153

ForLinuxBuilt-in SystemMysqlIf the database is not available, it may be whether the database is installed during the installation process.Mysql server, During installationMYSQL(Graphical interface installation), only click "details" next to it,

Part 1 Preparation and installation of clusterware and Oracle software 1. IP address planning Node1 Node2 Node3 Hostname Rac1 Rac2 Rac3 Public IP 192.168.5.243 192.168.5.244 192.168.5.239

After learning how to install Oracle in CentOS 5.3 for a long time, you may encounter an Oracle Installation problem in CentOS 5.3. Here we will introduce how to solve the Oracle Installation problem in CentOS 5.3, centOS Linux has a strict version

I. Path:/EASData/EASBAK/autobak Ii. Script Name: eas_expdp.sh Iii. Script content: #! /Bin/sh#===================================================== ==================# SCRIPT: eas_expdp_MontoSat.sh# AUTHOR: Jackey# Date: 2010-09-29# Rev. 1.0#

Use the postgres 9.0.3 installation package of the x86_64 binary version downloaded at postgresql.org to decompress it to/opt/pgsql. After using the initdb command to initialize the database, log on to the database using the psql command as usual,

I believe that you may have encountered or heard that the data has been deleted by the application by mistake. Maybe the spelling of SQL causes the predicate to permanently delete or update all the data? Or a false surprise? Therefore, we need: 1. "

In Oracle, the error "Connect internal only" and "until freed" indicate that the archived logs are full. There are two solutions: the first is to delete the archive log, and the second is to increase the maximum size of the flash log file. SQL>

ORA-600 [6947]/ORA-600 [kdsgrp1] Processing SQL> select * from v $ version; BANNER----------------------------------------------------------------Oracle Database 10g Enterprise Edition Release 10.2.0.1.0-64biPL/SQL Release 10.2.0.1.0-ProductionCORE 1

Premise nagging: I just learned mysql and want to go home and play on my own virtual machine. As a result, mysql immediately gave me a question and refused to connect to the root user. First of all, I patiently searched for a solution on the

Error 1: [INS-06101] IP address of localhost cocould not be determinedFigure: Solution: Because your host name and IP address are different, you can match the host name in the/etc/hosts file.Vim/etc/hostsIP address Host NameError 2: at Oracle.

Summary of errors during Oracle 11g Database Maintenance An error occurred while enabling archiving logs.SQL> alter database archivelog;Alter database archivelog*ERROR at line 1:ORA-00265: instance recovery required, cannot set ARCHIVELOG mode --

Because there are Too many online mysql instances, the Too connector connections problem is often encountered. This problem is also the most common problem. The following describes the solutions to this problem based on your own experience. When

Purpose: control whether the log Transmission Service asynchronously or synchronously writes log data to the disk. Affrem: Before the log writing process is in progress, the archive log and the slave database log must be synchronized and written.