Understanding PostgreSQL pg_settings and pg_file_settings with Practical Examples PostgreSQL offers powerful catalog views for examining configuration values that shape the performance and behavior of your database. Among these, pg_settings and pg_file_settings are essential tools for administrators who want to ensure …

Monitoring PostgreSQL Active Sessions with pg_stat_activity Explained As databases scale, monitoring active connections and queries in PostgreSQL becomes essential for performance tuning, troubleshooting, and ensuring stability. PostgreSQL provides a powerful system view called pg_stat_activity that contains detailed …

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 Query for Monitoring Slow Running Queries Purpose Monitoring and optimizing database performance is critical for any production environment. One common challenge is identifying slow queries that may impact overall system responsiveness. This article explains how to use a PostgreSQL SQL query to find …

How to Analyze PostgreSQL Query Cache-Hit Ratio Using pg_stat_statements Purpose Measuring the cache-hit ratio of your PostgreSQL queries is essential for understanding and optimizing how efficiently your database serves data from memory versus disk. This article explains how to use the pg_stat_statements extension to …

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 …

PostgreSQL Performance Tuning: Analyze Cache Hit Ratio with pg_stat_statements Purpose This PostgreSQL query empowers you to gain critical insights into the efficiency of your query workload by measuring the cache hit ratio from the pg_stat_statements extension. Cache hit ratio is a crucial metric for evaluating how …