How to Identify and Monitor Slow Queries in PostgreSQL: A Practical Guide
May 19, 2025 / · 3 min read · PostgreSQL SQL database performance monitor running queries pg_stat_activity ·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 …
Read MoreHow to Analyze PostgreSQL Query Cache-Hit Ratio Using pg_stat_statements
May 18, 2025 / · 3 min read · PostgreSQL SQL database performance monitor running queries pg_stat_statements ·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 …
Read MoreIdentify Idle PostgreSQL Connections: Keep Your Database Clean This blog post equips you with the knowledge to identify and potentially terminate stale connections within your PostgreSQL database. We'll delve into the provided SQL code, explain its purpose, and offer valuable insights for maintaining optimal database …
Read MoreIdentifying Blocking PostgreSQL Queries using pg_stat_activity
Mar 25, 2024 / · 3 min read · pg_blocking_pids pg_stat_activity postgresql locks database performance database administration ·Identifying Blocking PostgreSQL Queries: A Guide for Database Administrators This article explores a PostgreSQL query designed to identify currently blocked database queries and the processes (identified by PIDs) responsible for blocking them. This information is crucial for database administrators troubleshooting …
Read MorePostgreSQL query to find columns containing only NULL values
Mar 24, 2024 / · 3 min read · postgresql database optimization database schema design database administration pg_class pg_namespace pg_attribute pg_type pg_statistic ·Identifying Null-Only Columns in PostgreSQL This article explores a valuable PostgreSQL query for database administrators. It helps identify columns within your database tables that exclusively contain NULL values. Uncovering these "null-only" columns can be a key step in optimizing storage usage and streamlining your …
Read MoreMonitoring Active Queries in PostgreSQL for Performance Optimization
Mar 22, 2024 / · 3 min read · postgresql performance monitoring optimization database pg_stat_activity ·Monitoring Active Queries in PostgreSQL for Performance Optimization Introduction Ensuring smooth database performance is crucial for modern applications. In PostgreSQL, the number of active queries can significantly impact responsiveness. This article explores a PostgreSQL query that effectively counts active queries, …
Read MoreIdentify Blocking Queries in PostgreSQL & Keep Your Database Running Smoothly using pg_stat_activity
Mar 21, 2024 / · 3 min read · postgresql performance optimization troubleshooting pg_stat_activity ·Identifying Blocking Queries in PostgreSQL: Keeping Your Database Running Smoothly Have you ever encountered sluggish performance in your PostgreSQL database? One culprit could be blocking queries. These are queries that are waiting on resources held by other queries, creating a chain reaction that slows everything …
Read MoreDatabase Connections A Look at PostgreSQL Backends using pg_stat_database
Mar 20, 2024 / · 3 min read · postgresql database administration performance optimization pg_stat_database ·Database Connections: A Look at PostgreSQL Backends This article delves into a PostgreSQL code snippet that sheds light on the number of backend connections established for each database within a PostgreSQL instance. We'll dissect the code, explore its purpose, and glean valuable insights for database administrators …
Read MoreHow Many Connections Can Your PostgreSQL Database Handle? Understanding the maximum number of connections your PostgreSQL database can accommodate is crucial for optimal performance and preventing bottlenecks. This post dives deep into the SHOW max_connections command, explaining its purpose, breakdown, and key …
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