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Databases & Data

23 Jan 26

Top 10 Common MongoDB Community Edition Mistakes Developers Must Avoid

Top 10 Common MongoDB Community Edition Mistakes Developers Must Avoid TL;DR MongoDB Community Edition works reliably in production when data modeling, indexing, security, and monitoring best practices are properly implemented. Avoid these common MongoDB Community Edition mistakes: Treating MongoDB like a relational database instead of a document database Ignoring indexes…
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MariaDB vs MySQL
04 Dec 24

MariaDB vs MySQL

MariaDB vs MySQL TL;DR MariaDB and MySQL are open-source relational databases with shared origins but different modern feature sets and community models. Compatibility: MariaDB maintains compatibility with MySQL while introducing additional storage engines and features. Performance: MariaDB often includes performance-enhancing engines (e.g., Aria, MyRocks) and optimizer improvements. Features: MariaDB adds…
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Fixing MongoDB Performance Issues: A Detailed Guide
19 Nov 24

Fixing MongoDB Performance Issues: A Detailed Guide

Fixing MongoDB Performance Issues: A Detailed Guide TL;DR Analyze slow queries using tools like explain() to identify bottlenecks and optimize query patterns. Create appropriate indexes to accelerate query performance and reduce full-collection scans. Use aggregation pipelines wisely by minimizing unbounded stages and limiting unnecessary operations. Enable caching with in-memory caches…
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Creating and Connecting to a PostgreSQL Database Instance
26 Jun 24

PostgreSQL Setup and Connection

Creating and Connecting to a PostgreSQL Database Instance TL;DR Install PostgreSQL on your system using package managers like apt (Ubuntu) or yum (CentOS) to set up core database services. Create and configure database users and roles securely using CREATE ROLE and ALTER ROLE commands. Use the psql CLI to connect…
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Leveraging MongoDB Aggregation Pipeline for Advanced Data Processing
25 Jun 24

Leveraging MongoDB Aggregation Pipeline for Advanced Data Processing

Leveraging MongoDB Aggregation Pipeline for Advanced Data Processing TL;DR The MongoDB aggregation pipeline processes and transforms data using a sequence of stages, each modifying documents as they pass through. Core stages include $match (filters documents), $group (aggregates data), $project (reshapes fields), $sort, $limit, and $lookup (joins collections). Pipelines optimize performance…
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What is Apache Kafka and How Can We Install It on Linux?
01 Feb 24

Apache Kafka Explained: Architecture, Use Cases, and Step-by-Step Installation on Linux

Apache Kafka Explained: Architecture, Use Cases, and Step-by-Step Installation on Linux   TL;DR Apache Kafka is an open-source distributed event streaming platform used to build real-time data pipelines and streaming applications. It uses a publish-subscribe model to handle high-throughput, fault-tolerant data streams. To install Kafka on Linux: Install Java (JDK…
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