Welcome to the exciting world of SQL! SQL, or Structured Query Language, is the language used to manage and manipulate data stored in relational databases. Whether you’re looking to become a data analyst, a database administrator, or just want to improve your data literacy, learning SQL is a great place…

PySpark is the alchemist of big data, turning vast amounts of information into actionable insights and knowledge. PySpark’s ability to handle large datasets makes it a valuable tool for data processing and analysis in the banking industry. In this project, we will utilize PySpark to analyze banking transactions and gain…

Learning SQL (Structured Query Language) is a valuable skill for anyone working with data, as it is a standard language used to communicate with databases. As they say “SQL is the glue that holds your data together. Without it, you’re just left with a scattered mess of information.” ~ Unknown …

Basic Linux commands → ls-al: Lists files and directories with detailed information like permissions, size, owner, etc. → ls: Lists all files and directories in the present working directory → ls-R: Lists files in sub-directories as well → ls-a: Lists hidden files as well → cd or cd ~: Navigate…

Ah, the Sunday Scaries. That feeling of dread and anxiety that creeps up on you every Sunday evening as the weekend draws to a close and the workweek looms ahead. It’s like a dark cloud hanging over your head, threatening to rain down stress and responsibilities. But have you ever…

Congratulations, fresher! You’ve landed an interview for a SQL job. Now, it’s time to prepare for the technical grilling that lies ahead. Don’t worry, though; with the right mindset and preparation, you can nail the interview and impress your potential employer. Also, please crush that clap and follow button. Review…

Are you tired of managing stacks of hard drives and external storage devices? Do you find yourself constantly worrying about data loss and system failures? Fear not, because AWS S3 is here to save the day! Amazon Simple Storage Service, commonly known as AWS S3, is a highly scalable and…

ROW_NUMBER(), RANK(), and DENSE_RANK() are all functions in SQL that are used to assign unique rankings to rows in a result set. They are similar, but have some important differences: Also Hey ! Show your support and appreciation by clapping for my posts! SQL Basics Simplified: 2023 Welcome to the exciting world of SQL! SQL, or Structured Query Language, is the language used to manage and manipulate…adityadaria.medium.com

“Data modeling is like a game of Tetris, every piece fits perfectly in its place to build a solid foundation.” Data modeling is the process of creating a conceptual representation of data and the relationships between different data entities. The goal of data modeling is to create a structure that…