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PostgreSQL : CREATE USER statement

Tutorial by:      Date: 2016-04-19 23:29:03

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This PostgreSQL tutorial explains how to use the PostgreSQL CREATE USER statement with syntax and examples.

Description

The CREATE USER statement creates a database account that allows you to log into the PostgreSQL database.

Syntax

The syntax for the CREATE USER statement in PostgreSQL is:

CREATE USER user_name

  [ WITH [ ENCRYPTED | UNENCRYPTED ] PASSWORD 'password_value'

  | VALID UNTIL 'expiration' ];

Parameters or Arguments

user_name

The name of the database account that you wish to create.

password_value

The password to assign to user_name.

expiration

The date/time value when the password will expire. If you never want the password to expire, you set expiration to 'infinity'.

Example

Let's look at how to create a user in PostgreSQL using the CREATE USER statement.

For example:

CREATE USER fastread.aitechtonic;

In this example, the CREATE USER statement would create a new user called fastread.aitechtonic. This new user would not have a password, but you could use the ALTER USER statement to assign a password later.

If you wanted to assign a password at the time that the user is created, you could change the CREATE USER statement as follows:

CREATE USER fastread.aitechtonic

  WITH PASSWORD 'fantastic';

This would create a user called fastread.aitechtonic with a password of 'fantastic'.

If you wanted to create the user fastread.aitechtonic with a password of 'fantastic' that expires on January 1, 2015, you would use the CREATE USER statement as follows:

CREATE USER fastread.aitechtonic

  WITH PASSWORD 'fantastic'

  VALID UNTIL 'Jan 1, 2015';

If you wanted the password for the user fastread.aitechtonic to never expire, you would use the CREATE USER statement as follows:

CREATE USER fastread.aitechtonic

  WITH PASSWORD 'fantastic'

  VALID UNTIL 'infinity';

 

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