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Tag: rdbms

  • PostgreSQL vs. MongoDB: Storing & Finding Data – A Master’s Guide

    PostgreSQL vs. MongoDB: Storing & Finding Data – A Master’s Guide Choosing the right database is a foundational decision in software development. While both PostgreSQL and MongoDB are powerful, widely used databases, they represent fundamentally different paradigms: PostgreSQL as a mature relational database (RDBMS) and MongoDB as a leading NoSQL document database. This guide will… Read more

  • SQL vs. NoSQL: A Comprehensive Guide to Database Mastery

    SQL vs. NoSQL: A Comprehensive Guide to Database Mastery In the vast landscape of data management, understanding the fundamental differences between SQL (Relational) and NoSQL (Non-relational) databases is crucial for anyone working with data. While both serve to store and retrieve information, their underlying philosophies, strengths, and ideal use cases diverge significantly. This guide aims… Read more

  • Implementing few e-Commerce queries in Spark SQL

    Spark SQL Implementation – E-commerce & Retail (First 5) Implementation # 1. Calculate daily/weekly/monthly sales trends. This query calculates the total sales for each day, week, and month. It assumes you have an orders table with an order_date and a total_amount. — Daily Sales Trend SELECT order_date, SUM(total_amount) AS daily_sales FROM orders GROUP BY order_date… Read more

  • Large-scale RDBMS to Neo4j Migration with Apache Spark

    Large-scale RDBMS to Neo4j Migration with Apache Spark Large-scale RDBMS to Neo4j Migration with Apache Spark This document outlines how to perform a large-scale data migration from an RDBMS to Neo4j using Apache Spark. Spark’s distributed computing capabilities enable efficient processing of massive datasets, making it ideal for this task. 1. Understanding the Problem Traditional… Read more

  • Sample project: Migrating E-commerce Data to a Graph Database

    Migrating E-commerce Data to a Graph Database Migrating E-commerce Data to a Graph Database This document outlines the process of migrating data from a relational database (RDBMS) to a graph database, using an e-commerce scenario as an example. We’ll cover the key steps involved, from understanding the RDBMS schema to designing the graph model and… Read more

  • Advanced RDBMS to Graph Database Loading and Validation

    Advanced RDBMS to Graph Database Loading Advanced Tips for Loading RDBMS Data into Graph Databases This document provides advanced strategies for efficiently transferring data from relational database management systems (RDBMS) to graph databases, such as Neo4j. It covers techniques beyond basic data loading, focusing on performance, data integrity, and schema optimization. 1. Understanding the Challenges… Read more

  • Ingesting data from RDBMS to Graph Database

    Advanced RDBMS to Graph Database Loading Advanced Tips for Loading RDBMS Data into Graph Databases This document provides advanced strategies for efficiently transferring data from relational database management systems (RDBMS) to graph databases, such as Neo4j. It covers techniques beyond basic data loading, focusing on performance, data integrity, and schema optimization. 1. Understanding the Challenges… Read more