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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
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
1
The following table between database objects that can be migrated when migrating from another database to PPAs
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Installation of PPAs will have the option to install Migreation Toolkit, you can choose to install, you can also download the
S skills, Postgres skills
If you need to add indexes when the business volume is large, you need to use CONCURRENTLY. Otherwise, your database will easily break down.
For example
create index CONCURRENTLY idx_order_records_bank_statist_uid on
#读者注意: This article can choose not to read the explanation, directly execute the code in 0 of each paragraph(0): Some concepts (can skip direct use (i) 0 of the code)1. Client: Psql. PostgreSQL command-line client program that enters the PostgreSQL
Since 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
1. InstallationThe latest version is automatically installed using the following command, 9.5sudo apt-get install PostgreSQLWhen the installation is complete, the default is:(1) Create a Linux user named "Postgres"(2) Create a default database
Description: The following content is more about how to install the environment, the actual development of the content is almost no, you can consider whether to read this article.
PostgreSQL database should be regarded as the Venus of the database
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