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Our SQL tutorial helps you learn SQL (Structured Query Language) in simple and easy steps so that you can start your database programming quickly. It covers most of the important concepts related to SQL for a basic to advanced understanding of SQL and to get a feel of how SQL works.
SQL is a database computer language designed for the retrieval and management of data in a relational databases like MySQL, MS Access, SQL Server, Oracle, Sybase, Informix, Postgres etc. SQL stands for Structured Query Language. SQL was developed in the 1970s by IBM Computer Scientists.
SQL makes it easy to manipulate this data using simple DML (Data Manipulation Language) Statements. For example, if we want to list down all the customers from USA then following will be the SQL query.
We have provided SQL Online Editor which helps you to Edit and Execute the SQL code directly from your browser. Try to click the icon to run the following SQL code to be executed on CUSTOMERS table and print the records matching with the given condition.
So now, you do not need to do a sophisticated setup to execute all the examples given in this tutorial because we are providing you Online SQL Editor, which allows you to edit your code and compile it online. You can try our Online SQL Editor.
SQL (Structured Query Language) is a MUST for the students and working professionals to become a great Software Engineer specially when they are working in Software Development Domain. SQL is the most common language used almost in every application software including banking, finance, education, security etc. to store and manipulate data.
SQL is the standard language for any Relational Database System. All the Relational Data Base Management Systems (RDBMS) like MySQL, MS Access, Oracle, Sybase, Informix, Postgres and SQL Server use SQL as their standard database language.
This SQL tutorial will help both students as well as working professionals who want to develop applications based on some databases like banking systems, support systems, information systems, web websites, mobile apps or personal blogs etc. We recommend reading this tutorial, in the sequence listed in the left side menu.
Though we have tried our best to present the SQL concepts in a simple and easy way, still before you start learning SQL concepts given in this tutorial, it is assumed that you are already aware about some basic concepts of computer science, what is a database, especially the basics of RDBMS and associated concepts.
This tutorial will give you enough understanding on the various concepts of SQL along with suitable examples so that you can start your Software Development journey immediately after finishing this tutorial.
This SQL tutorial helps you prepare for technical interviews and certification exams. We have provided various quizzes and assignments to check your learning level. Given quizzes have multiple choice type of questions and their answers with short explanation.
Average annual salary for a SQL professional is around $150,000. Though it can vary depending on the location. Following are the great companies who keep recruiting SQL professionals like Database Administrator (DBA), Database Developer, Database Testers, Data Scientist, ETL Developer, Database Migration Expert, Cloud Database Expert etc:
So, you could be the next potential employee for any of these major companies. We have developed a great learning material for SQL which will help you prepare for the technical interviews and certification exams based on SQL. So, start learning SQL using our simple and effective tutorial anywhere and anytime absolutely at your pace.
SQL skills help software programmers and data experts maintain, create and retrieve information from relational databases like MySQL, Oracle, MS SQL Server etc., which store data into columns and rows. It also allows them to access, update, manipulate, insert and modify data in efficient way.
SQL is very easy to learn. You can learn SQL in as little as two to three weeks. However, it can take months of practice before you feel comfortable using it. Determining how long it takes to learn SQL also depends on how you plan to use it. Following this SQL tutorial will give you enough confidence to work on any software development related to database.
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