Structured Query Language (SQL) is a domain-specific language designed for data management for RDBMS. SQL comes particularly handy in managing structured data and offers certain advantages, such as allowing the access of multiple records through a single command and eliminating the need to specify how to access a record. In simpler words, SQL provides tools to the programmer to define, control and manipulate data in a relational model including tables, rows, and columns.

If you wish to learn SQL programming, know the prerequisites well for a smooth learning journey. SQL is a basic query language used primarily for databases, coming with no prerequisites as such. With a simple syntax, there aren't many specific requirements, but it would be helpful to learn database concepts, calculus theories, and basic RDBMS concepts. Once you get a hold of these concepts, you are good to go.

SQL query is purely a text message application which can help you access data. SQL is used for most relational storage systems, and it is more of a query language than a programming language. Learning SQL helps the programmers in accessing data with greater efficiency through basic queries. It is predominantly effectual for data manipulation, and the data stored in SQL is dynamic, which means it can be manipulated and modified at any point of time using a set of basic queries. These features make SQL fully equipped to manage datasets of all shapes and sizes.

Edvicer is a great place to learn SQL with a large number of SQL courses, both free and paid, and projects, both for practice and freelancing. Edvicer has helped a large number of people learn SQL online through the best courses from the top providers like Coursera, Udemy, Udacity, and Pluralsight.

The top job profile for SQL experts are Dotnet Developer with an average salary of INR 5 LPA, Software Engineer with an average salary of INR 7 LPA, and Database Administrator with an average salary of INR 7 LPA. Get your career map for your skills here.

After learning SQL, the top skills you can learn to open highest number of job profiles for you are Python, Java, and Data Analytics. The top skills that can get you jobs with highest salaries are Node.js, Data Mining, and Statistical Modeling