could not connect to database postgres

Create a databaseCREATEDATABASE name WITH ] [ OWNER [=] user_name ] [ TEMPLATE [=] template ] [ ENCODING [=] encoding ] [ LC_COLLATE [=] lc_collate ] [ LC_CTYPE [=] lc_ctype ]

/var/lib/pgsql/data/pg_hba.confInstallation and configuration of the CentOS 6.3 under

Recently, I've been running rails with Docker, and there are some pits, and here's a note.First build Project:docker-compose buildAnd then you start to get an error: Psql:could not connect to server:no such file or directoryis the server

Running out of disk space in the Pg_xlog directory is a fairly common Postgres problem. This important directory holds the WAL (Write Ahead Log) files. (WAL files contain a record of all changes made to the Database-see the link for more details).

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

Sql. Open only creates the DB object, but dies not open any connections to the database. If you want to test your connections, you had to execute a query to force opening a connection. The common-on-a-to-call Ping () on your DB object.See

This is a creation in Article, where the information may have evolved or changed. Sql. Open only creates the DB object, but dies not open any connections to the database. If you want to test your connections, you had to execute a query to force

Installation process: 1. Configuration--prefix=prefix Install all files under the directory PREFIX instead of Usr/local/psql--with-pgport=number Set number as the default port number for server and clients,the default is

Previous blogs recorded the installation of PostgreSQL 9.3 via the RPM package (Linux CentOS 7 Installation PostgreSQL 9.3 (release)), this blog will be recorded in the form of the source code compiled PostgreSQL 9.5. Download The source file

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