postgresql optimization

Wiki. openbravo. comwikiERP2.50Developers _ GuideConceptsDBPL-SQL_code_rules_to_write_Oracle_and_Postgresql_codeProcedureLanguagerulesOpenbravoERPsupportsOracleandPostgreSQLdatabaseengines.Thisisasetofrecommendat Http://wiki.openbravo.com/wiki/ERP/2.50/Developers_Guide/Concepts/DB/PL-SQL_code_rules_to_write_Oracle_and_Postgresql_code Procedure Language rules Openbravo ERP supports Oracle and PostgreSQL database engines. This is a set of recommendat H

PostgreSQL is an object-relational database (database management system) based on the BSD license. Because of the flexibility of the license, anyone can use, modify, and distribute PostgreSQL for free for any purpose. Simply put, even if you take it to change it, and then take it out and sell it, no one will be in control. Therefore, a lot of domestic database is based on

Tags: http io ar os using SP for strong filesWindows under PostgreSQL installation diagram This article is mainly for you to introduce the method of installing PostgreSQL database under Windows, you need a friend can refer to the following Now talk about the free database, most people think of the first may be MySQL, indeed MySQL has been used in many areas of the country, especially the site. However, th

Label:First, the environment VM Virtual Machines Name="Ubuntu" VERSION="12.04.4 LTS, precise pangolin " Second, the process 1. Install make and do not load now. Install Make Make – version3.81 2006free software Foundation, Inc. Free for copying conditions. for merchantability or FITNESS for A Particular PURPOSE. for I686-pc-linux-gnu 2. Get the source code But now there is a ready-made binary installation package, and the installation method is given according to different systems. ht

The PostgreSQL database is a high-performance, full-featured, open-source relational database that explains how to install PostgreSQL 10 under Ubuntu 16.04 LTS. Add a software source wget -q -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add - sudo sh -c ‘echo "deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.lis

Now, when talking about free databases, most people may first think of MySQL. Indeed, MySQL has been applied in many domestic fields, especially in website setup. However, PostgreSQL is actually the most powerful, rich, and complex free database. Many of its features are the predecessor of many commercial databases such as Oracle and DB2. As a matter of fact, I recently came into contact with PostgreSQL bec

Now talk about the free database, most people think first of all may be MySQL, indeed MySQL has been used in many areas of the country, especially the site erection. But, in fact, the most powerful, most feature-rich and complex free database should be PostgreSQL. Many of its features are the predecessor of today's many business databases, such as Oracle, DB2, and so on. In fact, the author is also recently because of the needs of the project, contact

Operating system version[Root@web103 ~]# More/etc/issueCentOS release 5.9 (Final)Kernel \ r \m[Root@web103 ~]# Uname-aLinux web103 2.6.18-348.el5 #1 SMP Tue 8 17:53:53 EST 2013 x86_64 x86_64 x86_64 gnu/linuxdownload corresponding PostgreSQL corresponding RPM packageBecause the operating system version is CentOS 5.9 of 64-bit Linux, so download the corresponding version of the PRM package, mainly download server,client,contrib,libs four packages[root@w

First, restore disk space: In PostgreSQL, data rows that are deleted or updated using the Delete and UPDATE statements are not actually deleted, but only the state of the row is deleted or expired on the physical address of the old version of the data row. So when the data in the datasheet changes extremely frequently, the space that the table occupies will become very large after a period of time, but the amount of data may change little. To solve t

[Abstract] There are many database systems, free software database PostgreSQL is a very complete feature of the Free software object---Relational database management system (ORDBMS), its many features are the predecessor of today's many commercial databases. When Linux systems are popular, the PostgreSQL database system is also an efficient and stable database system for your needs. In recent more than a y

MySQL vs. PostgreSQL MysqlRelatively young, appearing for the first 1994 years. It claims to be the most popular open source database. MySQL is the M in the lamp (for web development packages, including Linux, Apache, and Perl/php/python). Most applications built on the lamp stack use MySQL, including those that are well-known applications such as WordPress, Drupal, Zend, and phpBB.To begin, MySQL was designed to become a fast Web server backend,

From accidentally climbing the blog PostgreSQL is a powerful open-source relational database system. after more than 15 years of development, it has won an excellent reputation in terms of reliability, data integrity, and correctness. it runs on all major operating systems, including Linux, UNIX (AIX, BSD, HP-UX, sgi irix, Mac OS X, Solaris, Tru64) and Windows. it fully complies with ACID principles and fully supports foreign keys, joins, views, trigg

This article mainly introduces the DB2 database development and PostgreSQL development in the actual operation of some of the similarities, and the difference, recently used DB2, wrote a point of difference. Not necessarily exactly right. But you can look at the difference. 1, Data Definition language (DDL) and peripheral tools: the difference between DB2 and PostgreSQL is almost 0, the specific difference

Recently contacted the installation of PostgreSQL, and share with you.First, IntroductionPostgreSQL 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. Some features don't even have a commercial database. The Berkeley-based database research program has now become an international development project and has a very wide range of use

fact, these 7000 curves explain that the ext4 barrier system) protects the file system, which has very poor performance in PostgreSQL. In the second test, we have added the nobarrier/barrier = 0 option to ext4 through/etc/fstab ). This option handles debrid) FS, but it is a very risky option. It is used only when you have a 1/5/6 controller of the disk array. When a write operation is completed on your disk, if your server restarts, for example, powe

This article mainly introduces some similarities between DB2 database development and PostgreSQL development in actual operations. What's more, I recently used DB2 databases and wrote some differences between them. Not necessarily true. But you can see the difference between the two. 1. Data Definition Language (DDL) and peripheral tools: the difference between DB2 and postgresql is almost 0. The specific

The content of this article complies with the CC copyright agreement, can be reproduced at will, but must be indicated in the form of Hyperlink original source and author information and copyright statement URL: www.penglixun.comtechdatabasemysql-vs-postgresql-part-1-table-organization.html translated from: blogs. enterprisedb. com20101129my The content of this article follow the CC copyright agreement, can be reproduced at will, but must be in the fo

Label:DescriptionI am using the root user login at the terminal, if the non-root user, that in the command before the need to add "sudo", you understand ...First step: install PostgreSQL under Ubuntu 1. Installing with Apt-get install[Email protected]:~#apt-get install-y postgresql-9.1 postgresql-client-9.1 postgresql-

The former is the management terminal installation package in windows, and the latter is the source code installation package of the database. (2) Copy postgresql-8.2.3.tar.gz to a temporary directory in Linux. The former is the management terminal installation package in windows, and the latter is the source code installation package of the database. (2) Copy postgresql-8.2.3.tar.gz to a temporary director

PostgreSQL is a powerful open-source relational database system. after more than 15 years of development, it has won an excellent reputation in terms of reliability, data integrity, and correctness. it runs on all major operating systems, including Linux, UNIX (AIX, BSD, HP-UX, sgi irix, Mac OS X, Solaris, Tru64) and Windows. it fully complies with ACID principles and fully supports foreign keys, joins, views, triggers, and stored procedures (in multi