create postgres database command line

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Analysis of concurrency control in Postgres and transaction characteristics (Concurrency)

PostgreSQL provides developers with a rich set of tools to manage concurrent access to data. Internally, data consistency is maintained by using a multi-version model (multi-version concurrency control, MVCC). This means that each SQL statement sees

Postgres Create user, modify user password, CREATE DATABASE __ Database

Reference: http://my.oschina.net/dddpeter/blog/116153 1. Create a user 1 Sudo-s-U postgres 2 Psql 3 postgres# CREATE USER xxxx1 with PASSWORD ' xxxx '; 4

Summary of Postgres Common commands

One: Command line Backup and recovery Postgres database①: First switch to Postgres userSu Postgres ②: Backing up a database named host to a temporary file Host.dumpPg_dump-w Host >/tmp/host.dump ③: Import data from backup file infile to database

INITDB analysis of Postgres--from the failure of one plugin upgrade

Our company has developed a database product based on Postgres, needless to say we have changed the source code of OSS, and have also integrated and written some plugins. Therefore, when PostgreSQL and related plugins are upgraded, we also need to

Summary of Postgres operations in Ubuntu

Summary of Postgres operations in Ubuntu 1.Basic operation commands After the installation is complete, PostgreSQL creates a database user account named Postgres by default. It is a super Administrator account like the root account of MySQL

PostgreSQL Tutorial (18): Client command (2) _postgresql

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

Linux install PostgreSQL and start and close tutorials

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

Import a CSV file into the Postgres database using the Copy command

1. Save Excel as a CSV2. Open CSV format with TXT3. Encoded in UTF-8 format, save as Blacklist20141231.csv4. Create a tableCreate table backlist_20141231 (date varchar (20), mobile number nvarchar (20), channel nvarchar (50));5. Using the Copy

PostgreSQL Tutorial (17): Client command (1) _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

Preliminary use of Postgres and OSM

Layout:postPreliminary use of Title:postgres and OSMDate:2016-9-20Categories:blogTags: [map development] Description: Map Development This paper mainly includes the following content PostgreSQL database, used to store map raw data osm2pgsql used to

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