postgres command line client

Psql: Fatal error: User "Postgres" Ident authentication failed1 after installing the PostgreSQL database, you need to initialize and some configuration rails project to connect PostgreSQL.After the PostgreSQL data is installed (the Yum command is

1. Switch to Postgres user;2. Enter: Psql, enter the client psql of PostgreSQL;3.\l View all the current databases;4.psql Database1 connected to database1 this database;5. \dt View all the tables of the currently connected database (DATABASE1);6. \d

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

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

Rails connection postgresql error: psql: Fatal error: User "s" Ident authentication failed, psqlpostgresPsql: Fatal error: User "s" Ident authentication failed 1. After the postgresql database is installed, you must initialize and configure some

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

I. INTRODUCTION to psql is a PostgreSQL command line interactive client tool, similar to the command line tool sqlplus: 1 in Oracle allows you to interactively type SQL or commands, then they are sent to the PostgreSQL server, and then the SQL or

PG Start first completes the main process and background process start, the start of the completion of the database file opening, the establishment of shared memory and so on. Next, all SQL initiates 1 separate processes to process the SQL execution.

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

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: