Sumit Mittal @bigdatasumit

Complete Guide for Data Engineers (Save it) Full SQL Course (Free) - lnkd.in/ghR66QR5 Complete Python Free Course (6 videos already released till now) lecture 1 - lnkd.in/gMJxn-CE lecture 2 - lnkd.in/gjuHD7KE lecture 3 - lnkd.in/gAjJT-hJ lecture 4 -…

Everyone around me told that "Getting a good college is really tough and competition is very high" So, out of fear I filled forms for multiple entrance exams and my mom innocently asked me, "Why are you applying for so many colleges?" I replied, "What if I can't get into top…

Top 10 technical posts for Big Data Enthusiasts (Save it 😊) 1. From 0 to Hero in SQL - Follow this Plan lnkd.in/dsnrQGhb 2. Crunching Big Data in absolute layman terms 🔥 lnkd.in/dfzCAJjU 3. Normalization vs Denormalization lnkd.in/dQsjBuXg 4. Super…

Data Engineers Interview Preparation - A complete Package (Free) Complete SQL Free Course - lnkd.in/ghR66QR5 Complete Python Free Course (6 videos already released till now) lecture 1 - lnkd.in/gMJxn-CE lecture 2 - lnkd.in/gjuHD7KE lecture 3 -…

Learn SQL for free - Complete plan SQL Basics (14 videos) 📌 SQL Fundamentals, CRUD Operations & Setting Environment - lnkd.in/ekBxGU2c 📌 Primary Key vs Unique Key, Auto Increment Values - lnkd.in/eXSugBVX 📌 DDL vs DML, Truncate vs Delete -…

Super Interesting Conversation of 2 friends - OLTP & OLAP OLTP: My name is Online Transaction Processing OLAP: My name is Online Analytical Processing OLTP: I work on individual entries  OLAP: I can analyze large batches of data 😜 OLTP: I can access recent data, from the last…

A Data Engineering Roadmap beyond just cracking Interviews! Here is a 32 weeks Step by Step Plan 1. Introduction to Big Data/DataLake Storage (3 weeks) Big Data - The Big Picture, Linux Commands, Introducing the Multi Node Practice Environment, Distributed Storage 2.…

Life is a game of numbers. I used to work a night shift, Earned ₹7,000/month. For my entrance exam coaching classes, I walked 6 kms each day. I saved money by not taking the bus. On big occasions like Diwali, I took up a night shift at a call centre for an extra ₹350. It…

"Mom, salary aane do dinner Taj mein karenge" Jobs, salaries, CTCs are important for us, but it is even more important for our families. This is story of my student Akash Anande He has got multiple offers from top notch companies, that too with a 100% hike. He was working in…

Data Engineers Interview Preparation - A complete Package (Free) Complete SQL Free Course - lnkd.in/ghR66QR5 Complete Python Free Course (6 videos already released till now) lecture 1 - lnkd.in/gMJxn-CE lecture 2 - lnkd.in/gjuHD7KE lecture 3 -…

A British prime minister can leave in 45 days but your 90 days notice period is non-negotiable. Working in company is probably a bigger task than being a PM of country 😂 Jokes apart, I have utmost respect to each & every company out there but some of the rules just don't make…

I have seen a lot of candidates who keep postponing the interviews. They keep saying I am still preparing, or I am not prepared. They feel they need more time, and want perfection. Remember one thing, you will never feel that you are 100% prepared. My suggestion, decide on a…

From a CTC of 12 LPA to 30+ LPA in 7 months Multiple offers & an extremely good hike, that's what a well planned learning can help you achieve. It's such a joy to see your students getting tremendous success. My advice to everyone out there, a few failures in life should not…

Normal Join vs a Broadcast Join in layman terms like never before Consider you started an EdTech company with 4 of your friends . All of you reside at different locations. Your EdTech offers 100's of courses Each course has a course id, course name, price, duration etc.. Let's…

12 ways to improve the performance of your Spark jobs 1. Caching Data In Memory lnkd.in/g8jkDcQn 2. Join Strategy Hints for SQL Queries lnkd.in/g8G5X_te 3. Coalesce Hints for SQL Queries lnkd.in/gTyx94zd 4. Adaptive Query Execution lnkd.in/g-p6GHrt…

Big Data Interviews in 2020 vs Big Data Interviews in 2024. It's amazing to see how the technology landscape has shifted in last 4 years. I conducted Big Data Mock Interviews back in 2020, Here is a playlist (2020) youtube.com/watch?v=IsMlZF… We again Started conducting these…

I still remember the day when I quit my job to enable students to get their dream jobs. This one decision has changed the lives of so many. Mounika Chirasani, our student cracked her dream job within 3 months of joining the ultimate big data course. This is what she wrote in…

A Data Engineering Roadmap beyond just cracking Interviews! Here is a 32 weeks Step by Step Plan 1. Introduction to Big Data/DataLake Storage (3 weeks) Big Data - The Big Picture, Linux Commands, Introducing the Multi Node Practice Environment, Distributed Storage 2.…

From 0 Subscribers to earning a Silver Play button I had fond memories of the day when I celebrated 500 subscribers. can't really believe I have come this far. It's really a nostalgic feeling when I look back at my older videos. Even though they were not shot with the best…

Big Data in absolute layman terms 🔥 Let's say we have a Bucket full of marbles. we need to calculate the number of marbles in the bucket. If a single person does this it will take a lot of time (Monolithic System) However, if we distribute the marbles among 10 people, then…