Database

How to Find Idle in Transaction Sessions in PostgreSQL An idle-in-transaction session is a database connection that has started a transaction but is not currently running a query. It is just sitting there, holding the transaction open. This is different from a regular idle connection, which has no open transaction. …

PostgreSQL Developer Settings Query: How to View Database Configuration Options This PostgreSQL query allows database administrators and developers to examine developer-specific configuration settings in their PostgreSQL database. The query targets the pg_settings system catalog to retrieve detailed information about …

PostgreSQL Authentication Settings Query for Admins Managing PostgreSQL at scale requires both fine-grained control and visibility into configuration parameters. One valuable system catalog, pg_settings, provides administrators direct insight into runtime parameters, defaults, and constraints that govern PostgreSQL’s …

pg_settings — Query PostgreSQL Configuration Parameters The live configuration PostgreSQL is running with and the values written in postgresql.conf are not always the same. A parameter that requires a server restart has already been updated in the file but the old value is still in effect. A reload that produced a …

Monitor PostgreSQL Active Sessions with pg_stat_activity pg_stat_activity is the system view that shows every backend process running against a PostgreSQL server right now — one row per connection, with the client address, the query it is running, how long it has been running, and what kind of backend it is. A single …

Monitor Running Queries in PostgreSQL (9.2+ and Newer) Overview When managing a PostgreSQL database, one of the most important tasks for database administrators and developers is monitoring currently running queries. This helps identify problematic sessions, troubleshoot performance bottlenecks, and optimize …

Restarting All PostgreSQL Sequences with SQL Script Database administrators often face challenges with PostgreSQL sequences, especially after data has been deleted or when tables have been re-imported. Sequences drive the generation of auto-incrementing values (like primary keys using SERIAL or BIGSERIAL), and …

PostgreSQL Lock Monitoring: Gain Insights into Locks with Query and Age Purpose This PostgreSQL SQL query equips you to monitor locks held by active database sessions along with their associated queries and age. This detailed information proves invaluable for performance tuning, troubleshooting lock conflicts, and …

PostgreSQL Lock Monitoring: Identify Blocking Locks and Resolve Application Conflicts Purpose In a busy PostgreSQL environment, transactions can sometimes become blocked, waiting for other transactions to release locks. This can slow performance and even cause stalls. This article dissects a powerful PostgreSQL script …

PostgreSQL: Identify Slow Running Queries in Real-Time Purpose This PostgreSQL SQL query provides a real-time snapshot of queries currently executing on your database that have been running for more than 30 seconds. It acts as a powerful alternative to a traditional slow query log, helping you proactively identify and …