SQL Introduction


SQL is open source and it’s a universal language. If you learn Microsoft SQL, then you can apply the same technique in other databases like Oracle, MySQL, Microsoft Access, etc.

SQL can be used to share and manage data, particularly data that is found in relational database management systems, which include data organized into tables. Using SQL, you can query, update, and reorganize data, as well as create and modify the schema (structure) of a database system and control access to its data.

In conclusion, as a free open-source programming language, SQL is at the very foundation of data science. Communication with relational databases will be easier when you learn SQL. I would recommend that any aspiring data scientist should learn SQL because it is easy to learn, helps in a deep understanding of datasets, integrates easily with scripting languages, manages huge datasets and is indeed a gateway to lucrative data science jobs.

The average salary of SQL developer is around $90,000 in 2020 and it is the most demanding skill even before Java, Python or C++.

There is no prerequisite for this tutorial, even non-programmers can take this tutorial without any issues. I will show you how to install Microsoft SQL Server 2019  so this tutorial is created using Microsoft SQL Server 2019 but will work on any Microsoft SQL Server version from 2012 to the latest version of Microsoft SQL Server.

I have started everything from scratch and by the end of this tutorial, you will master complete SQL statements on Microsoft SQL Server and most of the queries will be the same across all the databases like Oracle, Mysql, Microsoft Access, etc.

Even if you have a basic knowledge of SQL, this course will help you to gain mastery over this subject and it will increase your productivity.

You will gain mastery in all the major SQL statements like Selecting Records from Table, Filtering the Records, Sorting Records, Limiting the result of the result, grouping data, complete guide with examples of all the Functions, Creating simple and advanced Tables, Keys, Index, Inserting records(loading), Updating the records, Combining multiple tables, Joining the result, Modify table properties, deleting records from table, removing tables from database permanently, etc.

The tutorial is full of practice texts, quizzes, examples, etc. and you can download all the codes which are presented in this course.

So, what are you waiting for? Start learning SQL.

Tutorials for all brains!