#

databases

Database querying, design, and optimization

DatabasesLade.io Managed PostgreSQL Hosting: Reliable Review

Explore Lade.io as a managed PostgreSQL hosting provider. Compare reliability, backups, scaling, HA with AWS RDS, Supabase, Render. Real experiences, uptime, performance for production databases.

1 answer• 1 view
DatabasesPolarDB IMCI: Optimize SELECT * on Wide Tables

Mitigate read amplification for SELECT * on wide tables (500+ columns) in PolarDB IMCI. Column pruning, optimizer settings, and hybrid execution tips.

1 answer• 1 view
DatabasesMySQL JDBC Connection Refused Error: Troubleshooting Guide

Troubleshoot MySQL JDBC connection refused errors when command-line MySQL works. Learn about bind-address, IPv6/IPv4 conflicts, firewall issues, and solutions.

1 answer• 1 view
DatabasesEssential Data Quality Checks for Analytics Dashboards

Comprehensive guide to data quality checks, validation techniques, and thresholds for reliable analytics dashboards. Learn how to ensure data reliability before publishing.

1 answer• 4 views
DatabasesExtract JSON Nodes from OpenSearch with Mustache Templates

Learn how to extract specific inner JSON nodes from OpenSearch data using Mustache templates. Efficiently retrieve nested 'clientAccounts' data without returning entire documents.

1 answer• 1 view
DatabasesFind SQL Duplicates by Email & Name: GROUP BY Guide

Learn to find and remove SQL duplicates by multiple fields like email and name using GROUP BY, HAVING, window functions. Examples for detecting, retrieving full rows, and safe deletion in MySQL, PostgreSQL, SQL Server.

1 answer• 5 views