postgresql database replication

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

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

MysqlMaster-Slave Architecture Technical DescriptionMysql's built -in replication capabilities are the foundation for building large, high-performance applications. the distribution of MySQL data to multiple systems is done by copying the data from one of MySQL 's hosts (master) to other hosts (slaves). and re-run it again to achieve it. One server acts as the primary server during replication, while one or

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/

, $row);$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

Double-click the installation program to install PostgreSQL and create a geographic database. 2. for PostgreSQL installation location, you can select your PostgreSQL installation path. The default installation path is C: ProgramFilesPostgreSQL9.23. in this step, you can select the path where your

the order of the columns, the physical definitions can be inconsistent (by ALTER TABLE to increase the column to a consistent definition), but the column name, column data type, key definitions must be consistent.If the table DEFINITION checking is set to exact, it must be exactly the same; if set to relax, it can be inconsistent.Exact has a better performance than relax and is the default setting.Not very useful, skip.Copy compressionOnly the data stream emitted by the

Let's see if you can access the database server. The first example is trying to create a database. A running PostgreSQL server can manage many databases. Typically we use a single database for each project and for each user.The node administrator may have created a database

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