Beginner’s Guide to PostgreSQL and MS SQL

A beginner's guide to PostgreSQL and MS SQL

Start-Tech Trainings, Start-Tech Academy

Last Updated on September 28, 2023 by GeeksGod

Course : PostgreSQL and MS SQL for Beginners

Free Udemy Coupon

In this article, we will discuss the benefits of learning SQL and how it can help you in your career. We will also provide information on where to find free Udemy coupons for SQL courses.

Why choose this SQL course?

There are several reasons why you should choose this SQL course:

  1. Comprehensive curriculum: This course covers both basic and advanced SQL statements in PostgreSQL and MS SQL. It is designed to teach you everything you need to know about SQL for data analysis in businesses.
  2. Downloadable resources: The course includes downloadable resources that cover essential topics on SQL. These resources will be helpful for your learning and future reference.
  3. Instructor support: The instructor of this course will personally respond to your queries on SQL and anything covered in the Masterclass.
  4. Verifiable certificate: Upon completing this course, you will receive a verifiable certificate of completion. This certificate will enhance your resume and demonstrate your proficiency in SQL.

This SQL course is perfect for anyone looking to start a career as a data scientist or improve their data analysis skills. PostgreSQL and MS SQL are highly desired skills for database management and data analysis roles in companies.

Who will teach you?

This course is taught by Abhishek, Pukhraj, and Nadeem – instructors with over a decade of experience in teaching Data Science and Machine Learning. They have in-depth knowledge in advanced SQL, PostgreSQL, MS SQL, database management, and various data analysis tools.

Our Promise

As instructors, our job is to ensure your success in learning SQL. If you have any questions about the course content, practice sheets, or any related topic, you can always post a question in the course or send us a direct message. We are committed to providing you with the support you need.

Why learn SQL?

SQL, also known as the Structured Query Language, is the most universal and commonly used database language. It powers popular database engines such as PostgreSQL, SQL Server, SQLite, and MS SQL. Learning SQL is essential if you want to access databases and work with data.

SQL is not a programming language; it is a query language. It was designed to allow anyone, even those with basic English language skills, to retrieve interesting data from databases. SQL is in high demand by employers and learning it can lead to lucrative career opportunities.

Quick tip: If you are looking for free Udemy coupons for SQL courses, check out websites like and These websites regularly update their coupon codes, allowing you to access discounted or even free SQL courses.

How long does it take to learn SQL?

The time it takes to learn SQL varies for each individual. However, our course is designed to teach you SQL quickly and efficiently. By starting from the basics and progressing to advanced levels within hours, you can accelerate your learning. However, practice is crucial in learning SQL effectively.

SQL vs. PostgreSQL: What’s the difference?

SQL is a language, specifically the “Structured Query Language.” PostgreSQL, on the other hand, is a relational database management system (RDMS) that is one of several available systems. Other examples of RDMSs include Oracle, Informix, MySQL, and MS SQL. All of these systems use SQL as their language, with minor dialect variations.

PostgreSQL vs. MS SQL: Which is better?

Both PostgreSQL and MS SQL are excellent products with their own unique strengths. The choice between them often comes down to personal preference. PostgreSQL offers overall features for traditional database applications, while MS SQL focuses on faster performance for web-based applications. Both databases continue to evolve through open-source development, offering more features in subsequent releases.

Companies using these databases

PostgreSQL is used by companies such as Apple, BioPharm, Etsy, IMDB, Debian, Fujitsu, Red Hat, Sun Microsystems, Cisco, and Skype. MS SQL is utilized by Accenture, Cognizant, Dell, Microsoft, ViaVarejo, and other companies.

Learning SQL can open up a world of possibilities for your career. It is a skill highly sought after by companies in various industries. Whether you want to become a data scientist or enhance your data analysis skills, investing in SQL education is a worthwhile endeavor. Take advantage of the free Udemy coupons available for SQL courses and start your journey towards SQL proficiency today.

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What you will learn :

1. How to write SELECT queries to fetch relevant data in PostgreSQL and MS SQL
2. How to filter and sort the data using WHEN, logical operators and ORDER BY
3. How to group and aggregate data in PostgreSQL and MS SQL
4. How to apply joins and combining queries in PostgreSQL and MS SQL
5. String, mathematical, date-time functions and pattern matching in PostgreSQL and MS SQL
6. Understanding of VIEWS and INDEXES in PostgreSQL and MS SQL
7. How to write subqueries in PostgreSQL and MS SQL

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