Comparison of PostgreSQL database backup and recovery technologies
There are three completely different methods to back up PostgreSQL data:
SQL dump
File System-level backup
Online backup
I. SQL dump
The pg_dump application tool is used to export the current data block as an SQL file. When the database needs to be
the master instance and the other is used as backups, when the master LVS router fails, the backed up LVS router takes over the work of the master LVS router in a timely manner. In the LVS project, there is a component named keepalived. keepalived is dedicated for this purpose. For the application of keepalived, please refer to this experiment: load balancer system with high stability, availability, and efficiency. Keepalived is also a solution for vrrp in Linux.
3. In practical applications,
Document directory
Use PostgreSQL database for PHP Development
Use PostgreSQL database for PHP Development
Author:Heiyeshuwu
Use PostgreSQL database for PHP Development
Note: The following content is more about how to install
In this article, we use the MySQL 4.0.2-alpha and PostgreSQL 7.2 to compare, because MySQL 4.0.2-alpha started to support the concept of transactions, so this comparison for MySQL should be more advantageous. We don't want to be just a performance test report, because at least from my point of view, stability and speed do not represent everything for a database. For a mature
Oracle Database Backup is encrypted. Encryption can protect Backup files and prevent backup data leakage.Oracle backup encryption mainly refers to RMAN encryption, and EXP/EXPDP encryption is not available.
RMAN encryption mainly
apache|web| Data | Database sender: xiaoning (I want to fly), letter area: Linux
Title: Apache+php3+postgresql as a web-based database platform for Ann
Letter station: BBS Water Wood Tsinghua Station (Thu 20 16:00:28 2000)
The following describes the installation and configuration method for using Apache+php3+postgresql
There are a variety of Installation manuals for each platform to be installed. You can search for details in google. Here is the Installation Method On debian, ubuntu class: aptitudeinstallpostgresql # This is the database aptitudeinstallpgadmin3 # This is the management tool on the GUI. Here the debian machine (172.16.70.175) is my notebook and I need it
There are a variety of Installation manuals for each platform to be installed. You can search for
First, overview:
A database can be considered a named collection of SQL objects (database objects), and typically, each database object (table, function, and so on) belongs to only one database. However, for some system tables, such as Pg_database, it belongs to the whole cluster. More precisely, a
In this article, we will focus on another option, the open source database named PostgreSQL. Although MySQL is a fast, powerful, and fairly simple relational database management system, PostgreSQL is more comprehensive and sacrifices some speed for this complexity.
If you are used to using interfaces that contain vari
Master software installation and maintenance, configuration, and other skills in the Linux/Unix environment as required. Here I will record my usage experiences and share them with you. Take database installation as an example (note: The above installation is based on source code ). The following Li...
Master software installation and maintenance, configuration, and other skills in the Linux/Unix environment as required. Here I will record my usage ex
Recently, the company asked a website to be revised and download the website programs and databases to programmers. The program file is very simple. Just download it by creating a compressed package. When I looked at the configuration file to view the database, I was dumpfounded. The database type was postgresql, and I had never heard of the Data Type before, let
Tags: net full file out should be accessed to implement a database super userfirst, the use of Pg_dump:Import and export of databases is one of the most commonly used features, each of which provides tools for this, such as Oracle's Exp/imp,informix Dbexp/dbimp,mysql mysqldump, and PostgreSQL provides a corresponding tool for Pg_ Dump and Pg_restore.Pg_dump is a tool for backing up the
Clarify: the content below is more about how to install the environment, and there is almost no actual development content. you can consider whether to browse this article. PostgreSQL database should be the starting star in the database field, some of which are more effective than Oracle and other trade databases.
Clarify: the content below is more about how to i
Ubuntu Install, use PostgreSQL database$ sudo apt-get install PostgreSQL$ sudo passwd postgres (postgres account's home directory:/var/lib/postgresql)Installing the Postgres Graphical client$ sudo apt-get install pgadmin3 (call to enter pgadmin3 directly on the command line)Main configuration files for Postgres/etc/
From MARSPRJ0. Compiling the Environment
Linux:centos 5.5
gcc:4.1.2
1. Installing PostgreSQL1) Unzip the POSTGRESQL-9.1.7.TAR.BZ2#tar JXVF postgresql-9.1.7.tar.bz22) Enter the postgresql-9.1.7 directory after decompression#cd postgresql-9.1.73) Compile PostgreSQL
study the relationship between tablespaces and databases.Database creation statement create database dbname the default database owner is the role currently created for the database, and the default tablespace is the system's default tablespace -- pg_default.Why? In PostgreSQL, data is created by cloning
In North America, people are enthusiastic about PostgreSQL. With the development of PostgreSQL, PostgreSQL 8.x has already surpassed MySQL 5.x technically, and market transcendence is only a matter of time. In the end, users may have the opportunity to enjoy open-source databases comparable to Oracle.The Internet company I work for serves about 0.5 million busine
, $row);$record = ' ('. Implode (', ', $row). "); \ r \ n";(!fwrite ($handle, $record)) die ("Can not write data to file$datafile");}Mysql_free_result ($result);To close a file:Fclose ($handle);return true;}}?>
To back up the Mybbs database:
SQL code
Example 1 Backup:
Require_once (' dbbak.php ');
Require_once (' tablebak.php ');
$connectid = mysql_connect (' localhost ', ' root ', ' 123456 ');
$backupDir = ' data ';
$DbBak = new Dbbak ($connectid,
Tags: info null--src email amp char installation Complete Create userSince MySQL was acquired by Oracle, PostgreSQL has become the first choice for open-source relational databases. This article describes the installation and basic usage of PostgreSQL for first-time users to get started. The following is based on the Debian operating system, and the rest of the operating system is not in the balance, but mo
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