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PostgreSQL – Create Database

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  • Difficulty Level : Expert
  • Last Updated : 28 Aug, 2020
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PostgreSQL has multiple ways to create a database. In this article we will discuss multiple ways to do so.

1. Using psql Shell:

To create a database through the psql shell we make the use of the CREATE DATABASE statement as below:

 OWNER =  role_name
 TEMPLATE = template
 ENCODING = encoding
 LC_COLLATE = collate
 LC_CTYPE = ctype
 TABLESPACE = tablespace_name
 CONNECTION LIMIT = max_concurrent_connection

The various options provided by the CREATE DATABASE statement are explained below:

  • db_name: It is the name of the new database that you want to create.It must always be a unique name.
  • role_name: It is the role name of the user who will own the new database.
  • template: It is the name of the database template from which the new database gets created.
  • encoding: It specifies the character set encoding for the new database. By default, it is the encoding of the template database.
  • collate: It specifies a collation for the new database.
  • ctype: It specifies the character classification for the new database like digit, lower and upper.
  • tablespace_name: It specifies the tablespace name for the new database.
  • max_concurrent_connection: It specifies the maximum concurrent connections to the new database.

Example 1:
Here we will create a test database with all default settings.

CREATE DATABASE my_test_db1;


Example 2:
Here we will create a test database with the following parameters:

  • Encoding: utf-8.
  • Owner: GeeksForGeeks with postgres as the user.
  • Maximum concurrent connections: 30.


2. Using pgAdmin:

Follow the below steps to create a new database using pgAdmin.

  • Step 1: Log in to PostgreSQL via pgAdmin.
  • Step 2: Right click on the Databases menu and then click on New Database… sub-menu item as depicted below:

  • Step 3: Now enter the new database name, owner, and configure parameters and click the OK button as depicted below:

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