psql command line tutorial

Seven, Pg_dump: Pg_dump is a tool for backing up the PostgreSQL database. It can even make a full, consistent backup when the database is being used concurrently, without blocking access to the database by other users. The dump format generated by

PostgreSQL tutorial (18): client commands (2), postgresql tutorial VII. pg_dump: Pg_dump is a tool used to back up PostgreSQL databases. It can even perform a full and consistent backup when the database is being used concurrently without blocking

First, installationNaturally, before you can start using PostgreSQL, you must install it. PostgreSQL is probably already installed on your node because it may be included in the release of your operating system, or the system administrator has

The SQLite library contains a command line named sqlite3, which allows you to manually enter and execute SQL commands for the SQLite database. This document provides a brief description of sqlite3. Start To start the sqlite3 program, you only need

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

0, password file: Before giving other PostgreSQL client commands, we need to introduce the password file in PostgreSQL. The file is explained here in advance because we are applying the file in a lot of the following sample code to ensure that our

Once you have created the database, you can access it: Terminal program psql , which runs PostgreSQL interaction, allows you to interactively enter, edit, and execute SQL commands. Create and manage databases using our existing

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

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

Reprint, original link http://linux.cn/portal.php?mod=view&aid=170 using Ubuntu to build a Ruby on Rails Local development environment Want to develop a Ruby on Rails app? Although there are already some (beginner) Ruby on Rails