SQL Tutorial – Learn SQL Programming Online from Experts

This SQL tutorial will help you learn SQL basics, so you can become a successful SQL developer. You will find out what are the SQL commands, syntax, data types, operators, creation & dropping of tables, inserting and selecting query. Through this tutorial you will learn SQL for working with a relational database. Learn SQL from Intellipaat SQL training and fast-track your career.

SQL Tutorial for Beginners

This SQL Tutorial for Beginners is a complete package for how to learn SQL online. In this SQL tutorial , you will learn SQL programming to get a clear idea of what Structured Query Language is and how you deploy SQL to work with a relational database system.

So, a structured query language is a language that is used to operate the relational databases. Some of the major ways in which SQL is used in conjunction with a relational database is for the purposes of storing, retrieving and manipulating of data stored in a relational database.

Check out Intellipaat’s blog to get a fair understanding of SQL Optimization Techniques!

Here we have the list of topics if you want to jump right into a specific one:

Watch this SQL Tutorial for Beginners video:

What is SQL?

The language to communicate with the relational database is the SQL or Structured Query Language. SQL programming helps to operate the relational databases and derive information from it.

Some of the operations that the SQL does include creation of database, fetching, modifying, updating and deleting the rows along with storing, manipulating and retrieving data within the relational database. SQL programming is an ANSI standard language but there are a lot of versions of SQL in usage as well.

Why is SQL programming so widely used?

Structured Query Language or SQL programming is used so extensively for the following reasons.

SQL lets you access any data within the relational database
You can describe the data in the database using SQL
Using SQL you can manipulate the data with the relational database
SQL can embed within other languages through SQL modules & libraries
SQL lets you easily create and drop databases and tables
SQL allows you to create views, functions and stored procedures in databases
Using SQL you can set permissions on procedures, tables and views.

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Watch this SQL Interview Questions and Answers for Beginners video

Features of SQL

Here in this section of the SQL tutorial for beginners, we list some of the top features of SQL that make it so ubiquitous when it comes to managing relational databases.

SQL is very simple and easy to learn language
SQL is versatile as it works with database systems from Oracle, IBM, Microsoft, etc.
SQL is an ANSI and ISO standard language for database creation and manipulation
SQL has a well-defined structure as it uses long established standards
SQL is very fast in retrieving large amounts of data very efficiently
SQL lets you manage databases without knowing lot of coding

Applications of SQL

Here in this section of the SQL tutorial we will learn SQL applications that make it so important in a data-driven world where managing huge databases is the norm of the day.

SQL is used as a Data Definition Language (DDL) meaning you can independently create a database, define its structure, use it and then discard it when you are done with it
SQL is also used as a Data Manipulation Language (DML) which means you can use it for maintaining an already existing database. SQL is a powerful language for entering data, modifying data and extracting data with regard to a database
SQL is also deployed as a Data Control Language (DCL) which specifies how you can protect your database against corruption and misuse.
SQL is extensively used as a Client/Server language to connect the front-end with the back-end thus supporting the client/server architecture
SQL can also be used in the three-tier architecture of a client, an application server and a database which defines the Internet architecture.

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Why should you learn SQL?

Today regardless of the relational databases systems by major corporations like Oracle, IBM, Microsoft and others, the one thing that is common to them is the Structured Query Language or SQL.

So if you learn SQL online then you will be able to pursue a very broad career spanning a lot of roles of responsibilities. Also if you are learning SQL then it is important for a data science career as well since a data scientist will also have to deal with relational databases and query it using the standard language SQL.

Originally published at www.intellipaat.com in the tutorial "SQL Tutorial" on 09 Sept. 2019.

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SQL stands for Structured Query Language. SQL is a scripting language expected to store, control, and inquiry information put away in social databases. The main manifestation of SQL showed up in 1974, when a gathering in IBM built up the principal model of a social database. The primary business social database was discharged by Relational Software later turning out to be Oracle.

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Since the Internet boom of the last century, it has been a crucial part of the computer world.

“But then, why should I learn SQL – such an ancient language – when there are so many recent languages, such as Python and R, that have become more dominant?” is a question that stumps many developers and programmers!

Structured Query Language – SQL – was built to interact with different databases. So, any computer programmer whose job requires them to work on databases needs to be well-versed with SQL.

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