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SQL HackerRank Challenge- Get Gold star 670 points

  • Development
  • Mar 14, 2025
SynopsisSQL HackerRank Challenge: Get Gold star & 670 points, ava...
SQL HackerRank Challenge- Get Gold star 670 points  No.1

SQL HackerRank Challenge: Get Gold star & 670 points, available at $69.99, has an average rating of 4.9, with 167 lectures, 56 quizzes, based on 78 reviews, and has 11885 subscribers.

You will learn about Get silver and gold rank with 600+ points Solve 30+ questions of HackerRank SQL section How to write SELECT queries to fetch relevant data in PostgreSQL and MySQL How to filter and sort the data using WHEN, logical operators and ORDER BY How to group and aggregate data in PostgreSQL and MySQL How to apply joins and combining queries in PostgreSQL and MySQL String, mathematical, date-time functions and pattern matching in PostgreSQL and MySQL Understanding of VIEWS and INDEXES in PostgreSQL and MySQL How to write subqueries in PostgreSQL and MySQL This course is ideal for individuals who are Working Professionals beginning their Data journey or Anyone curious to learn and compare both PostgreSQL and MySQL or Students about to join their first corporate job It is particularly useful for Working Professionals beginning their Data journey or Anyone curious to learn and compare both PostgreSQL and MySQL or Students about to join their first corporate job.

Enroll now: SQL HackerRank Challenge: Get Gold star & 670 points

Summary

Title: SQL HackerRank Challenge: Get Gold star & 670 points

Price: $69.99

Average Rating: 4.9

Number of Lectures: 167

Number of Quizzes: 56

Number of Published Lectures: 165

Number of Published Quizzes: 55

Number of Curriculum Items: 223

Number of Published Curriculum Objects: 220

Original Price: $199.99

Quality Status: approved

Status: Live

What You Will Learn

  • Get silver and gold rank with 600+ points
  • Solve 30+ questions of HackerRank SQL section
  • How to write SELECT queries to fetch relevant data in PostgreSQL and MySQL
  • How to filter and sort the data using WHEN, logical operators and ORDER BY
  • How to group and aggregate data in PostgreSQL and MySQL
  • How to apply joins and combining queries in PostgreSQL and MySQL
  • String, mathematical, date-time functions and pattern matching in PostgreSQL and MySQL
  • Understanding of VIEWS and INDEXES in PostgreSQL and MySQL
  • How to write subqueries in PostgreSQL and MySQL
  • Who Should Attend

  • Working Professionals beginning their Data journey
  • Anyone curious to learn and compare both PostgreSQL and MySQL
  • Students about to join their first corporate job
  • Target Audiences

  • Working Professionals beginning their Data journey
  • Anyone curious to learn and compare both PostgreSQL and MySQL
  • Students about to join their first corporate job
  • 6 Reasons why you should choose this SQL course

    1. Solve complete 20 questions of ‘Weather Observation Station’ case study of HackerRank

    2. Other HackerRank SQL case studies we will be solving

      1. The Pads

      2. Binary Tree Nodes

      3. New Companies

      4. The Report

      5. Top Companies

      6. Ollivander’s Inventory Challenges

      7. Contest Leaderboard

      8. Placements

      9. Symmetric Pairs

      10. SQL Project Planning

    3. Carefully designed curriculum teaching you everything in SQL that you will need for Data analysis in businesses

    4. Comprehensive – covers basic and advanced SQL statements in both, PostgreSQL and MySQL

    5. Downloadable resources covering important topics on SQL

    6. Your queries on SQL and anything covered in the Masterclass will be responded by the Instructor himself

    A Verifiable Certificate of Completion is presented to all students who undertake this SQL course.

    Why should you choose this course?

    This is a complete tutorial on SQL which can be completed within a weekend. SQL is the most sought after skill for Data analysis roles in all the companies. PostgreSQL and MySQL are highly desired skills for database management and data analysis roles. So whether you want to start a career as a data scientist or just grow you data analysis skills, this course will cover everything you need to know to do that.

    What makes us qualified to teach you?

    The course is taught by Abhishek, Pukhraj and Nadeem. Instructors of the course have been teaching Data Science and Machine Learning for over a decade. They have an in-depth knowledge in advanced SQL, PostgreSQL, MySQL, database management, and various data analysis tools available in the market.

    Our Promise

    Teaching our students is our job and we are committed to it. If you have any questions about the course content, practice sheet or anything related to any topic, you can always post a question in the course or send us a direct message.

    By the end of this course, your confidence in using SQL will soar. You’ll have a thorough understanding of how to use SQL for Data analytics as a career opportunity.

    Go ahead and click the enroll button, and I’ll see you in lesson 1!

    Cheers

    Start-Tech Academy

    FAQ’s

    Why learn SQL?

    1. SQL is the most universal and commonly used database language. It powers the most commonly used database engines like PostgreSQL, SQL Server, SQLite, and MySQL. Simply put, If you want to access databases then yes, you need to know SQL.

    2. It is not really difficult to learn SQL. SQL is not a programming language, it’s a query language. The primary objective where SQL was created was to give the possibility to common people to get interesting data from the database. It is also an English-like language so anyone who can use English at a basic level can write SQL queries easily.

    3. SQL is one of the most sought-after skills by hiring employers.

    4. You can earn good money

    How much time does it take to learn SQL?

    SQL is easy but no one can determine the learning time it takes. It totally depends on you. The method we adopted to help you learn SQL quickly starts from the basics and takes you to advanced level within hours. You can follow the same, but remember you can learn nothing without practicing it. Practice is the only way to learn SQL quickly.

    What’s the difference between SQL and PostgreSQL?

    SQL is a language. Specifically, the “Structured Query Language”

    PostgreSQL is one of several database systems, or RDMS (Relational Database Management System). PostgresSQL is one of several RDMS’s, others of which are Oracle, Informix, MySQL, and MSQL.

    All of these RDMSs use SQL as their language. Each of them have minor variations in the “dialect” of SQL that they use, but it’s all still SQL.

    Which is better, PostgreSQL or MySQL?

    Both are excellent products with unique strengths, and the choice is often a matter of personal preference.

    PostgreSQL offers overall features for traditional database applications, while MySQL focuses on faster performance for Web-based applications.

    Open source development will bring more features to subsequent releases of both databases.

    Who uses these databases?

    Here are a few examples of companies that use PostgreSQL: Apple, BioPharm, Etsy, IMDB, Macworld, Debian, Fujitsu, Red Hat, Sun Microsystem, Cisco, Skype.

    Companies that use MySQL:Uber, Airbnb, Netflix, Udemy, Pinterest etc.

    Course Curriculum

    Chapter 1: Introduction

    Lecture 1: Introduction

    Chapter 2: Course Resources

    Lecture 1: Course Resources

    Lecture 2: This is a milestone!

    Chapter 3: HackerRank – Weather Observation Station 20 questions

    Lecture 1: Weather Observation Station 1 – 15 points – EASY level

    Lecture 2: Weather Observation Station 2 – 15 points – EASY level

    Lecture 3: Weather Observation Station 3 – 10 points – EASY level

    Lecture 4: Weather Observation Station 4 – 10 points – EASY level

    Lecture 5: Weather Observation Station 5 – 30 points – EASY level

    Lecture 6: Weather Observation Station 6 – 10 points – EASY level

    Lecture 7: Weather Observation Station 7 – 10 points – EASY level

    Lecture 8: Weather Observation Station 8 – 15 points – EASY level

    Lecture 9: Weather Observation Station 9 – 10 points – EASY level

    Lecture 10: Weather Observation Station 10 – 10 points – EASY level

    Lecture 11: Weather Observation Station 11 – 15 points – EASY level

    Lecture 12: Weather Observation Station 12 – 15 points – EASY level

    Lecture 13: Weather Observation Station 13 – 10 points – EASY level

    Lecture 14: Weather Observation Station 14 – 10 points – EASY level

    Lecture 15: Weather Observation Station 15 – 15 points – EASY level

    Lecture 16: Weather Observation Station 16 – 10 points – EASY level

    Lecture 17: Weather Observation Station 17 – 15 points – EASY level

    Lecture 18: Weather Observation Station 18 – 25 points – MEDIUM level

    Lecture 19: Weather Observation Station 19 – 30 points – MEDIUM level

    Lecture 20: Weather Observation Station 20 – 40 points – MEDIUM level

    Chapter 4: HackerRank – Medium & Hard questions

    Lecture 1: The Pads – 30 points – MEDIUM level

    Lecture 2: Binary Tree Nodes – 30 points – MEDIUM level

    Lecture 3: New Companies – 30 points – MEDIUM level

    Lecture 4: The Report – 20 points – MEDIUM level

    Lecture 5: Top Companiess – 30 points – MEDIUM level

    Lecture 6: Ollivanders Inventory – 30 points – MEDIUM level

    Lecture 7: Challenges – 30 points – MEDIUM level

    Lecture 8: Contest Leaderboard – 30 points – MEDIUM level

    Lecture 9: Placements – 40 points – MEDIUM level

    Lecture 10: Symmetric Pairs – 40 points – MEDIUM level

    Lecture 11: SQL Project Planning – 40 points – MEDIUM level

    Chapter 5: Setting up PostgreSQL and PGAdmin

    Lecture 1: Installing PostgreSQL and pgAdmin in your PC

    Lecture 2: If pgAdmin is not opening

    Chapter 6: Installing MySQL

    Lecture 1: Installing and Setting up MySQL

    Chapter 7: Fundamental SQL statements

    Lecture 1: CREATE in PostgreSQL

    Lecture 2: CREATE in MySQL

    Lecture 3: Exercise 1: Create DB and Table

    Lecture 4: Solutions to all Exercises

    Lecture 5: INSERT in PostgreSQL

    Lecture 6: INSERT in MySQL

    Lecture 7: Import data from File in PostgreSQL

    Lecture 8: Import data from File in MySQL

    Lecture 9: Exercise 2: Inserting and Importing data

    Lecture 10: SELECT statement in PostgreSQL

    Lecture 11: SELECT statement in MySQL

    Lecture 12: SELECT DISTINCT in PostgreSQL

    Lecture 13: SELECT DISTINCT in MySQL

    Lecture 14: WHERE in PostgreSQL

    Lecture 15: WHERE in MySQL

    Lecture 16: Logical Operators in PostgreSQL

    Lecture 17: Logical Operators in MySQL

    Lecture 18: Exercise 3: SELECT, WHERE & Logical

    Lecture 19: UPDATE in PostgreSQL

    Lecture 20: UPDATE in MySQL

    Lecture 21: DELETE in PostgreSQL

    Lecture 22: DELETE in MySQL

    Lecture 23: ALTER Part 1 in PostgreSQL

    Lecture 24: ALTER Part 2 in PostgreSQL

    Lecture 25: ALTER in MySQL

    Lecture 26: Exercise 4: Update, Delete and Alter Table

    Chapter 8: Restore and Back-up in PostgreSQL

    Lecture 1: Restore and Back-up

    Lecture 2: Debugging restoration issues

    Lecture 3: Creating DB using CSV files

    Lecture 4: Debugging summary and Code for CSV files

    Lecture 5: Exercise 5: Restore and Back-up

    Chapter 9: Restore and Back-up in MySQL

    Lecture 1: Restoring and Back-up in MySQL

    Lecture 2: Restore and Back-up in MySQL

    Chapter 10: Selection commands: Filtering

    Lecture 1: IN in PostgreSQL

    Lecture 2: IN in MySQL

    Lecture 3: BETWEEN in PostgreSQL

    Lecture 4: BETWEEN in MySQL

    Lecture 5: LIKE in PostgreSQL

    Lecture 6: LIKE in MySQL

    Lecture 7: Exercise 6: In, Like & Between

    Chapter 11: Selection commands: Ordering

    Instructors

  • SQL HackerRank Challenge- Get Gold star 670 points  No.2
    Start-Tech Trainings
    Analytics and ML academy
  • SQL HackerRank Challenge- Get Gold star 670 points  No.3
    Start-Tech Academy
    5,000,000+ Enrollments | 4.5 Rated | 160+ Countries
  • Rating Distribution

  • 1 stars: 0 votes
  • 2 stars: 1 votes
  • 3 stars: 7 votes
  • 4 stars: 27 votes
  • 5 stars: 43 votes
  • Frequently Asked Questions

    How long do I have access to the course materials?

    You can view and review the lecture materials indefinitely, like an on-demand channel.

    Can I take my courses with me wherever I go?

    Definitely! If you have an internet connection, courses on Udemy are available on any device at any time. If you don’t have an internet connection, some instructors also let their students download course lectures. That’s up to the instructor though, so make sure you get on their good side!