SQL (Structured Query Language) is a programming language designed for managing data in a relational database. It's been around since the 1970s and is the most common method of accessing data in databases today. SQL has a variety of functions that allow its users to read, manipulate, and change data. Though SQL is commonly used by engineers in software development, it's also popular with data analysts for a few reasons:



There are many ways to organize a database and many different types of databases designed for different purposes. Mode's structure is fairly simple:

  • Tables have rows and columns just like Excel, but are a little more rigid. Database tables, for instance, are always organized by column, and each column must have a unique name.

  • Because it can be used to access large amounts of data directly where it's stored, analysts don't have to copy data into other applications.

What SQL does

With SQL, we can query our database in several ways, using English-like statements.With SQL, a user can access data from a relational database management system.

  • It allows the user to define the data in the database and manipulate it when needed.

  • It allows the user to create a view, stored procedure, function in a database.

  • It allows the user to set permission on tables, procedures, and views.