Authentication failures and related problems generally manifest themselves through error messages like the following:

An index column need not be just a column of the underlying table, but can be a function or scalar expression computed from one or more columns of the table. This feature is

The catalog pg_description stores optional descriptions (comments) for each database object. Descriptions can be manipulated with the

This module implements a data type chkpass that is designed for storing encrypted passwords. Each password is automatically converted to encrypted

The functions and function-like expressions described in this section operate on values of type xml. Check

Rows can be removed from a table using the DELETE command. Suppose you are no longer interested in the weather of Hayward. Then you can do the

Once you have created a database, you can access it by: Running the PostgreSQL

The view pg_seclabels provides information about security labels. It as an easier-to-query version of the

Functions and triggers allow users to insert code into the backend server that other users might execute unintentionally. Hence, both mechanisms permit users to "Trojan

The data type uuid stores Universally Unique Identifiers (UUID) as defined by RFC 4122, ISO/IEC 9834-8:2005, and related standards. (Some systems