Precautions for installing Oracle 10 Gb in Ubuntu

Now more and more friends are using Ubuntu, including I have replaced Windows from the very beginning as my only desktop system, and it is working with Oracle, which is used by the company, oracle has many auxiliary tools in windows, while linux ~~

MySQL Character Set setting skills on Ubuntu

By default, mysql is installed on Ubuntu with the character set latin1. 1. View character set support Show character set; 2. View character set variables Show variables like "character_set % "; 3. Set the default Character Set To solve garbled

Oracle database does not respond to dbstart in Linux

After installing the Oracle database in Linux, I tried to use dbstart to start the database but did not respond. In this case, I need to change the oracle configuration. Su rootVi/etc/oratab*:/Opt/oracle/product/9.2.0.4: NEgo:/opt/oracle/product/9.2.

Summary of why snort cannot connect to MySQL

Summarize the causes of the problem: When I install snort, The./configure -- with-mysql = DIR path indicates a problem. My system has installed mysql So when I reinstall it, I directly./configure -- with-mysql, and uninstall the snort before the

Install MySQL under RHEL

1. Download the four required rpm installation packages from the mysql website (which must be downloaded from the official website to prevent data modification and expires

Successful MySQL cluster Solution

I encountered the following problems when testing MySQL cluster. Please help me analyze what is going on. My mysql clusterdeployment uses the mysql-cluster-gpl-6.2.15-linux-i686-glibc23.tar.gz tar package.Node Manager: 192.168.5.254Storage Node192.16

MySQL management tool: phpMyAdmin 3.0.1.1 release and download

PhpMyAdmin is a PHP-based MySQL database management tool based on the Web-Base architecture on the website host.You can manage the entire MySQL Server (requires a Super User) or a single database. To implement the latter, You need to properly set

Oracle re-Compilation of invalid stored procedures, or functions, triggers, and other objects

In some cases, the stored procedure in Oracle becomes invalid. A Red Cross is displayed in the upper left corner of the stored procedure icon in PL/SQL Developer. For example, if the objects referenced in the stored procedure are invalid, dblink may

MySQL does not support GBK encoding.

In Linux, MySQL5.1 installed with packages does not support GBK encoding. It only supports UTF8 encoding. Specific performance: When you open a database encoded with GBK, the following message is displayed: ERROR 1273 (HY000): Unknown collation

Memory Structure distribution principle of dedicated Oracle servers

Generally, we will use the memory of the Oracle instance to 80%-60% of the physical memory of the system (4G memory or above uses more than 80%, 2g memory uses 60%-70%)S = pga + sga_max_size = 80% memory)Db_cache_size = 60% sgaShared_pool_size = sga_

Set LOCK_SGA in Linux Oracle

An error occurs after lock_sga is set in Linux: Ora-27102: Out Of Memory: Linux Error: 12: Cannot Allocate Memory with LOCK_SGA = TRUE[Oracle @ db ~] $ Ulimit-Core file size (blocks,-c) 0Data seg size (kbytes,-d) unlimitedFile size (blocks,-f)

Oracle10g in Linux

1. Log On with the root user in LinuxUseradd OraclePasswd oracleVi/etc/sysctl. confAdd:Kernel. shmall = 2097152Kernel. shmmax = 2147483648Kernel. shmmni = 4096Kernel. sem = 250 32000 100 128Fs. file-max = 65536Net. ipv4.ip _ local_port_range = 1024 6

Linux MySQL root permission recovery

In order to securely set the Linux MySQL root permission, the Administrator account is not added after the setting .. Instead, I started to toss the database. There are many users in it, and the method of re-installation is not feasible .. Finally

Oracle Upgrade (10.2.0.1-& gt; 10.2.0.3)

Generally, after Oracle software is installed, Oracle will be patched before the database is created. Of course, it doesn't matter if the database is not installed. Next we will introduce the upgrade process of Oracle after the database is created,

Oracle cannot unlock all EM-related accounts

When Oracle creates EM, an error is returned: Configuration: Failed to unlock mgmt_view account22:47:03 oracle. sysman. emcp. EMReposConfig invoke Severe: cannot unlock all EM-related accounts 22:47:03 oracle. sysman. emcp. EMConfig performSevere:

SQL * Plus copy command to process Mass Data Replication

For data replication at the database TABLE level, the most common method is create table as (CTAS. In fact, the copy command under SQL * Plus can do the same job, and it is better, and the performance is also better. What's more, data replication

Comparison between Oracle LOGMNR mining logs and DUMP logs

Many people know that LOGMNR is used to analyze logs, but few use DUMP to analyze logs. This is because the information analyzed by LOGMNR is easy to read and understand. But sometimes we still need to DUMP to analyze the log file, because it

MySQL utf8mb4 Character Set: supports emoji

(I) Preface In order to cope with opportunities and challenges of the wireless Internet, and to avoid problems caused by emoji, We recommend that you use the utf8mb4 character set in advance for MySQL databases involving wireless connection. This

Mysqlslap stress testing tool

Mysqlslap is a mysql testing tool started with mysql 5.1.4.  [Root @ www.bkjia.com ~] # Mysqlslap -- helpMysqlslap Ver 1.0 Distrib 5.5.31, for Linux (x86_64)Copyright (c) 2005,201 3, Oracle and/or its affiliates. All rights reserved. Oracle is a

Oracle Data Guard role conversion

Lab environment: OEL + Oracle11.2.0.3 + physical standby As we all know, Data Guard is already the mainstream disaster tolerance solution of today's standards. Due to its strong adaptability to the network, it can adopt synchronous real-time

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