What is SQL? Introduction and Importance

SQL stands for?:

SQL is a programming language and it stands for Structured Query Language. It is mainly used to access data in relational databases. Mostly the data is kept in the form of tables which means relational databases store structured form of data.

SQL mainly helps to get data from humongous databases very easily as a result it increases its importance. For example, SQL can be used to access data from a customer database to check who bought groceries from a store during past few weeks. It can give you all the information like customer ID, purchase amount and also which items were purchased.

SQL has a very broader use nowadays for instance not only Data Engineers but also Marketers, Professionals in Finance as well as Product developers can find this tool very useful. It is used for data analysis and extraction that is why it is used by many types of professionals. SQL is a very helpful tool for both technical as well as non technical professionals.

Why you should learn SQL?

*Jobs with Higher pay:

Nowadays job market is looking great for SQL programmers and developers. It is also expected to grow in the future which means it can be a great choice for a career. SQL is used worldwide hence it has created many opportunities for jobs and due its demand companies offer high amount of pay.

* Easy Troubleshooting:

SQL is a programming language which has made troubleshooting the errors very easy and simple. For example, if you get a syntax error in a program, then the displayed error shows what is missing or if you have misspelled something or if you entered the command at wrong place. Further it also shows an error if you are trying to access a database or table that does not exist.

Hence SQL can be used to remove errors (if any) from a program.

*Access Data from multiple sources:

There are many instances where you desire to combine data from more than one source but you consider it difficult and time consuming. This is where SQL makes things easy. By using SQL, combining data from multiple sources is very easy and efficient. In this process you just have to bring up databases which are to be combined.

*Data is accessed quickly:

SQL not only manages and processes a very large amount of data but it can also access that large amount of data very quickly. You can access this large amount of data whenever you want in seconds. What makes it quick is that SQL stores data in an organized structure. Companies and businesses can work more efficiently with this much quick access of data. SQL is also used to manage servers and how to create them. By learning the programming language called SQL, anyone can swiftly go through a huge amount of data and learn how to get data from any web application.

*Handle huge data:

A very large amount of data is being generated daily and is being handled through various methods. Mostly spreadsheets are used to handle data but they can only handle small or medium sized data. You need a tool with more efficient and higher performance to handle a very large amount of data. SQL has brought ease in managing large sized data. It can handle humungous amount of data effortlessly.

*Easy to learn:

One of the main reason to study SQL is that it is very easy to learn. It works with the help of very simple queries which helps to access data in databases. As the queries are in English language hence they are easy to understand. So by learning this language you will be able to access and retrieve data from a large database which is not easy for anyone who does not use SQL. As a result you will prove to be more valuable for your company.