PostgreSQL – How to Retrieve the Size of A Database

ByAdmin

To get the size of a PostgreSQL database, you can use a few different methods, including SQL queries and command-line utilities. Here are a couple of approaches:

Using SQL Query

You can use the following SQL query to get the size of a specific database in PostgreSQL:

SELECT pg_size_pretty(pg_database_size('your_database_name')) AS database_size;

where your_database_name is the name of the database for which you want to retrieve the size. This query uses the pg_database_size function to get the size in bytes and then formats it using pg_size_pretty to make it more human-readable.

Using Command-Line Utility

You can also use the pg_size utility from the command line to get the size of a PostgreSQL database. Open a terminal and run the following command:

pg_size -d your_database_name

where your_database_name is the name of the database for which you want to retrieve the size. The pg_size utility will provide information about the database’s size, including its total size on disk.

Similar Posts

PostgreSQL – How to Move Sequence to a Different Schema

ByAdmin

To move a sequence to a different schema in PostgreSQL, you can use the ALTER SEQUENCE command. The basic syntax is as follows: ALTER SEQUENCE current_schema.sequence_name SET SCHEMA new_schema; where current_schema is the name of the schema where the sequence currently resides, sequence_name is the name of the sequence, and new_schema is the name of…

PostgreSQL – How to Create a Schema

ByAdmin

A schema is a way to organize database objects, such as tables, views, functions, and more, into separate namespaces within a PostgreSQL database. Schemas help you group related objects together and avoid naming conflicts. Here’s how you can create a schema in PostgreSQL: CREATE SCHEMA schema_name; Replace schema_name with the name you want to give…

PostgreSQL – How to Check if User is Superuser

ByAdmin

The is_superuser configuration setting or attribute determines whether a user has superuser privileges or not. Superusers have the highest level of access and control over a PostgreSQL database cluster, including the ability to perform critical administrative functions. The is_superuser setting is a boolean attribute associated with database roles (users). When a user is designated as…