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PostgreSQL Advantage2016-10-20 21:36 686 People read comments (0) favorite reports Classification:MySQL Database (5)PostgreSQL is a free object-relational database server (database management system), which is very powerful. Includes support for
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
Have you ever accidentally deleted a database table or damaged the disk where the database is stored? If you encounter this situation, I believe you will feel very frustrated, because the results of your hard work for a few weeks may be overwhelmed.
For PostgreSQL database backup, one of the methods described in the official manual is ldquo and SQLDumprdquo. (another method is to directly back up the files in the file system.
For PostgreSQL database backup, one of the methods described in the
One way to do a backup of the PostgreSQL database according to the official manual is to use "SQL Dump" (another way is to directly back up files in the file system, refer to the official manual).The basic usage is as follows:Pg_dump dbname >
PostgreSQL is a very complex object-relational database management system (ORDBMS), and is currently the most powerful, feature richest and most complex free software database system.os:centos6.5 x64ip:192.168.85.130Hostname:vm2.lansgg.comPG Version:
I. SQL commandII. PostgreSQL client Application
Clusterdb --Cluster a PostgreSQL database
createdb --Create a new PostgreSQL database
Createlang --Installing a PostgreSQL process language
CreateUser --Define a new PostgreSQL user account
Comparison between PostgreSQL and MySQL
Features
MySQL
PostgreSQL
Instance
Run the MySQL Command (mysqld) to start the instance. One instance can manage one or more databases. One server can run multiple mysqld instances.
BackgroundPostgreSQL logical backup, refers to online backup database data, DDL output as SQL statements, data can be in the form of SQL statements or fixed separators (row format) output.
The backup does not affect the DML operation of the Backup
From: http://bbs.chinaunix.net/thread-1688208-1-1.html
Features
MySQL
PostgreSQL
Instance
Run the MySQL Command (mysqld) to start the instance. One instance can manage one or more databases. One server can run
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