postgresql optimization

Installing PostgreSQL using RPM packages in Linux Postgresql and MySQL are currently popular and active open source relational database systems. Compared with high-end Oracle commercial products, Postgresql and MyQL have much room for improvement in software maturity and development features. However, in the system selection process, the basic software level is d

According to my understanding of the four domestic databases, three of which are based on PostgreSQL development. And, because of the flexibility of the license, anyone can use, modify, and distribute PostgreSQL for any purpose, whether for private, commercial, or academic research. This article simply introduces the installation and simple use of PostgreSQL, the

If you're going to choose a free, open source database for your project, you may be hesitant between MySQL and PostgreSQL. MySQL and PostgreSQL are free, open source, powerful, and feature-rich databases. Your main question may be: which is the best open source database, MySQL or PostgreSQL? which open source database should we choose? When choosing

Tags: authentication fish installation process EMC Rod GREP help certification forWindows installation processDownload the binary installation package from here and follow the prompts step by step.Service ManagementThe name of the service can be used first to services.msc viewλ net start postgresql-x64-10postgresql-x64-10 - PostgreSQL Server 10 服务正在启动 .postgresql

Postgresqlサーバの Li accentuate on げに less しハマりましたので, メモしておきます.os:ubuntu14.04 LTSインストールInitially はpostgresqlをインストールします.Ordinary occupies apt-get コマンドを make えばインストールできますので, special pen すべきことはありません.$ sudo apt-get update$ sudo apt-get install-y postgresql-9.3　　インストールが out ましたら, /etc/init.d/ occupies start with のスクリプトが make されるはずです.startコマンドでサーバを accentuate on げられますが, こ

Tags: posrgresql installed on Linux on CentOS.1.1.1 Software Installation1. set user groups and user levelsPostgresql cannot run as root and will run as a different identity, so the corresponding users and groups must be established. (1) New Database user groups: Groupadd Database(2) New Pgsql users belong to PostgreSQL user groups: useradd-g Database Pgsql(3) Modify Pgsql User Password :p asswd Pgsql (Here the password is set to Postgres )2. Operatin

3.4 Replay Transaction logOnce we have created an initial base backup of our own, we can collect the Xlog created by the database. When the time comes, we can use all these xlog files and perform the recovery process we expect. This works as described in this section.Perform basic recoveryIn PostgreSQL, the entire recovery process has a file management called recover.conf, which resides primarily in the home directory of the underlying backup. It is r

PostgreSQL Quick Start introduces how to install and configure the PostgreSQL server in Ubuntu. PostgreSQL is a powerful relational database management system, which is released according to the BSD license [1. PostgreSQL contains many advanced features with good performance and good applicability.

Note that the download is a binary sedan, not with Windows Installer. Http://www.enterprisedb.com/products-services-training/pgbindownload x86 download Http://get.enterprisedb.com/postgresql/postgresql-9.2.4-1-windows-binaries.zipx64 Download Http://get.enterprisedb.com/postgresql/postgresql-9.2.4-1-windows-x64-binar

1.1.1 Software Installation1. set user groups and user levelsPostgresql cannot run as root and will run as a different identity, so the corresponding users and groups must be established. (1) New Database user groups: Groupadd Database(2) New Pgsql users belong to PostgreSQL user groups: useradd-g Database Pgsql(3) Modify Pgsql User Password :p asswd Pgsql (Here the password is set to Postgres )2. Operating System Information: CentOS 5 x863. Preparing

the operation. Efficiency of other operations after execution For queries, because there are a large number of disk page fragments, the efficiency will gradually decrease. It is more efficient than not performing any VACUUM operations, but the insertion efficiency is reduced. After this operation is completed, the efficiency of all operations based on this table will be greatly improved. Ii. Update planner statistics: When selecting the optimal path, the

So far, we have processed file-based replication (or log shipping) and simple stream-based replication settings. In both cases, after the transaction is committed on master, the data is submitted and received by slave. It will still be lost at the time that master commits and slave actually receives the data completely.In this chapter, we will study the following topics:• Ensure that no transactions are lost• Configure PostgreSQL synchronous replicati

Label:PostgreSQL installs a detailed collection of LinuxInstall the 8.4.4 version here and download the Postgresql-8.4.4-1-linux.bin first.(http://www.postgresql.org/download/) Download the linux32 version of1. If the file is not on a Linux system, drag it from Windows to a Linux system and place it in any directory, preferably in/opt or/home. Recommended tool for a Windows file to go to Linux: WinSCP3 ( 1, open a terminal, Su-into the root user;2, ch

Common postgresql commands (1) User utility: createdb creates a new PostgreSQL database (same as the SQL statement: CREATEDATABASE) createuser creates a new PostgreSQL user (same as the SQL statement: same as CREATEUSER) dropdb delete database dropuser delete user pg_dump PostgreS Common postgresql commands (1) User ut

ObjectiveThe previous blog records the installation of PostgreSQL 9.3 in the form of RPM packages (Linux CentOS 7 Installation PostgreSQL 9.3 (release)), and this blog will record the installation of PostgreSQL 9.5 in the form of source code compilation.DownloadIn the official PostgreSQL can find the source file direct

Mysql|oracle This is my comparison's installing and getting started with Oracle 10g, PostgreSQL 8 and MySQL 5. This is what I consider the comparison of the ' art for three categories to db:commercial vs. Academe vs. Internet Model. This is a comparison from the view of a new user wanting to install a database to learn. I ' m trying to keep the viewpoint of a home or small business user.Full disclosure:i am strongly biased towards Oracle and fully exp

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 official manual is ldquo; SQL Dumprdquo; (another method is to directly back up the files in the file system For PostgreS