PostgreSQL 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 …
Read MoreHow to Monitor PostgreSQL Index Cache for High Speed Queries
Mar 18, 2024 / · 2 min read · postgresql database performance optimization caching pg_statio_user_indexes ·Keeping PostgreSQL Queries Speeding Along: Monitoring Index Cache Hit Rates For a smooth-running PostgreSQL database, ensuring efficient access to frequently used data is crucial. Indexes act as shortcuts, speeding up queries. But how well are those indexes utilized? This post explores a SQL query that helps you …
Read MoreImporting Data into an Existing PostgreSQL Database Managing your PostgreSQL database often involves importing data from backups or external sources. This post explores a simple yet effective command-line approach to achieve this: psql -d anexistingdb -f dump.sql. We'll break down its components, explain its …
Read MoreBacking Up Your Remote PostgreSQL Database: A Step-by-Step Guide with pg_dump In the world of databases, regular backups are crucial for ensuring data safety and minimizing downtime during unforeseen circumstances. This post dives into using pg_dump, a powerful PostgreSQL utility, to create a compressed archive of your …
Read MoreIdentify Large Indexes for PostgreSQL Database Optimization with SQL
Mar 17, 2024 / · 4 min read · pg_catalog pg_indexes pg_class pg_tablespace storage optimization performance sql ·Unveiling Your PostgreSQL Indexes: A Deep Dive with Code In the realm of relational databases, efficient data retrieval is paramount. PostgreSQL achieves this partly through the magic of indexes. But have you ever wondered what lurks beneath the surface of these indexes? This post delves into a powerful Postgres …
Read MoreMonitor PostgreSQL Index Usage for Speedy Queries
Mar 17, 2024 / · 3 min read · postgresql database performance optimization indexing pg_stat_user_tables ·Monitoring PostgreSQL Index Usage: Keeping Your Queries Speedy In the fast-paced world of web applications, ensuring efficient database queries is paramount. PostgreSQL's powerful indexing capabilities play a crucial role in achieving optimal performance. This post delves into a SQL query that helps you monitor index …
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