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Home 2015 November PostgreSQL: Script to Kill all Running Connections and Sessions of a Database

PostgreSQL: Script to Kill all Running Connections and Sessions of a Database

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In this post, I am sharing a script to kill all running connections and sessions of a PostgreSQL Database.

I need this script during the PostgreSQL maintenance task, in which we require to close all connections and sessions.

Before executing this script, please take care and verify all running connections and processes otherwise this script will harm to your data or transactions.

You may require this type of script very occasionally, but I am sharing because this is also one of the necessary scripts for PostgreSQL DBA.

This script will work after PostgreSQL 9.1.

Script to kill all running connections by specifying a database name:

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SELECT pg_terminate_backend(pg_stat_activity.pid)
FROM pg_stat_activity
WHERE datname = 'datbase_name'
AND pid <> pg_backend_pid();

Script to kill all running connections of a current database:

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SELECT pg_terminate_backend(pg_stat_activity.pid)
FROM pg_stat_activity
WHERE datname = current_database()
AND pid <> pg_backend_pid();

Nov 2, 2015Anvesh Patel
MySQL: Get ID of the Last Updated RowPostgreSQL: How to Clear Cache of the Database Sessions
Comments: 1
  1. Brainfire Supplement
    November 16, 2015 at 7:50 pm

    Way cool! Some extremely valid points! I appreciate you
    penning this write-up plus the rest of the website is really good.

Anvesh Patel
Anvesh Patel

Database Engineer

November 2, 2015 PostgreSQL, PostgreSQL DBA ScriptAnvesh Patel, database, database research and development, dbrnd, kill, plpgsql, Postgres Query, postgresql, PostgreSQL Administrator, PostgreSQL Error, PostgreSQL Programming, PostgreSQL Tips and Tricks
About Me!

I'm Anvesh Patel, a Database Engineer certified by Oracle and IBM. I'm working as a Database Architect, Database Optimizer, Database Administrator, Database Developer. Providing the best articles and solutions for different problems in the best manner through my blogs is my passion. I have more than six years of experience with various RDBMS products like MSSQL Server, PostgreSQL, MySQL, Greenplum and currently learning and doing research on BIGData and NoSQL technology. -- Hyderabad, India.

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