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What is the best source to learn Oracle SQL?
Hello! I will going to give you brief little intro about each website sources which is good for you to start with this websites that focus on SQL syntax and basic SQL concepts. 1. Vertabelo Academy s Vertabelo Academy s offers interactive SQL courses available directly in the browser. You can learn about SQL queries s data management s and table creation s . The SQL Basics s course starts with simple queries progressing through GROUP BY queries to advanced topics like subqueries. You will also find out about the subtle changes between various joining methods including INNER JOIN LEFT JOIN RIGHT JOIN and OUTER JOIN. Finally youll have a chance to test your knowledge in aprehensive quiz. In the Operating on Data in SQL s course you will learn how to manage data in relational databases i.e. how to insert update and delete information from a database. In the Creating Tables in SQL s course you will find out how to manage the structure of a relational database. Youll learn to create tables and define their various elements like primary keys UNIQUE keys and foreign keys. You will get to know how to use and define constraints. Finally you will find out how to create views. Each course features dozens of interactive exercises with a detailed explanation of the theory behind the lesson and an interactive console that verifies your solution. Afterpleting all lessons you can take a final quiz to test your knowledge. You can start the course without registration but you will be asked to sign up afterpleting the first few exercises. You can register with your email address or your social profiles (Facebook Google+ Twitter or GitHub). 2. W3Schools 3 SQL Tutorial W3Schools claims to be the largest web developer site on the Internet. It provides various tutorials and references on web development languages such as HTML CSS JavaScript PHP SQL and JQuery covering most aspects of web programming. Their online SQL Tutorial ges you through syntax and most important statements keywords and functions. Short but concrete descriptions and many examples make this tutorial easy to read and understand. A distinctive feature is the ability to test queries online . At the start of the tutorial there is a sample database which you can modify and restore back to its original content at any time. The ge ends with a simple quiz. The entire tutorial is available without registration. 3. Codecademy 3 Learn SQL s Codecademy s is an online platform that offers a wide range of free coding courses in programming languages like HTML JavaScript jQuery PHP Python and Ruby. In addition to these courses Codecademy students can learn how to manage data with SQL. Like all other courses at Codecademy Learn SQL s is free and interactive. It covers the basics of database fundamentals tables queries aggregate functions constructing advanced database queries and more. The course consists of 4 lessons that focus on basic SQLmands to manipulate data stored in relational databases the mostmonly used SQLmands to query a table in a database using SQL to perform calculations during a query querying multiple tables using joins The user interface of each lesson is divided into three panels. The left one contains a description of the exercise with a brief theoretical introduction. In the center there an interactive SQLmand line where the user writes SQL against an SQLite database. The panel on the right features a visual representation of the database schema with the query result. Afterpleting a lesson you can test your knowledge with a quiz or master your skills with a real-world project to teach you how to apply what youre learning in a hands-on practical way. Unfortunately both quizzes and projects are available only for users who have subscribed to a paid Pro version of Codecademy. In order to participate in the course you need to register using an email address or a Google or Facebook account. s Khan Academy s provides its users with micro-lectures in the form of YouTube videos lots of practice exercises and a personalized learning dashboard. Combined these tools empower learners to study at their own pace inside and outside of the classroom. Among many courses offered by Khan Academy you can find a free SQL course called Intro to SQL Querying and Managing Data. s Each lesson consists of two elements. The window on the left is a video tutorial while the window on the right shows real-time changes in the database structure and the results of queries performed under the SQLite database. Exercises are supported by documentation and useful hints. After finishing the first part of the course learnersplete a more advanced project. The whole course contains 5 parts starting with SQL fundamentals. It continues with constructing more advanced SQL queries using operators (such as AND IN LIKE etc.) and joins. An ending section called What to learn next provides useful tips and s. Khan Academy allows users to watch videos without registering; however after registration (via Facebook Google or email) they can ask questions regarding videos and participate in discussions. 5. SQLZoo SQLZoo is a nice free and interactive SQL tutorial developed and maintained by Edinburgh Napier University . The course features live interpreters and interactive exercises for multiple s of databases such as MySQL PostgreSQL Oracle SQL Server and DB2 . This site has three major sections Tutorials Assessments and Reference . A tutorial is a set of exercises that aims to acquaint you with new topics. You start with SQL basics then go through nested SELECT statements and aggregate functions (such as COUNT SUM or AVG) ending with more advanced JOIN operations. At any time you can consult the Reference section for background on the appropriate theory exed with interactive examples. Afterpleting each tutorial you can take a quiz to show how well you understand the topic. The Assessments section offers several mini projects; each includes 15 questions of varying levels of difficulty. The course is available without registration however you can create an account with your email. This is rmended if you want to publishments or contribute to the site. 6. Tutorials Point 3 Learn SQL Tutorials Point claims to be the web largest library of tutorials. Indeed it offers dozens of online courses inputer engineering information technology programming languages and management. If youre looking to learn SQL or database concepts you will find several tutorials here including courses in SQL MySQL PostgreSQL SQLite DB2 PL and others. The Learn SQL tutorial provides a nice ge to basic SQL its most useful functions and more advanced topics. There are plenty of easy-to-understand examples but no interactive exercises to practice what you have learned. All courses available at including the Learn SQL tutorial can be accessed without registration. It worth mentioning that you can download the whole tutorial as a PDF file to get back to it at any time even when offline. 7. Udacity 3 Intro to Relational Databases s Udacity s offers interactive online courses aimed at advancing academic and vocational skills. Although Udacity is profit-oriented some courses are available for free. One of its free courses is Intro to Relational Databases s which provides the learner with the basics of SQL and database design. Since the course uses examples and programming exercises in Python youll also get to know the Python API. For this reason Python fundamentals are required. You don need any previous database experience since this course is an entry-level introduction to relational databases. The course consists of video lessons and each lesson includes a final quiz. The lessons are divided into four parts Relational Concepts SQL queries Python DB-API (accessing a relational database from Python code) Advanced SQL (joins normalization) The course ends with a project that focuses on building a database-backed Python module to run a game tournament. You don have to register to preview the course but if you want to get full access you must sign up with your email Google or Facebook account. 8. SQL Problems and Solutions SQL Problems and Solutions is an interactive book which lets you visualize tables and execute queries against a sample database. The tutorial exs the basic concepts and constructs of SQL and provides examples at various levels of expertise. Once you get familiar with SQL you can practice your skills on the sister site SQL Exercises . Here you can build and test your SQL DML statements there are exercises for retrieving and modifying data using the SELECT INSERT UPDATE and DELETE statements. You can read the entire book without registration but if you like to write your own queries in the interactive SQL console and execute them against sample databases youll need to sign up with your email address. 9. Tuts+ 3 SQL for Beginners Tuts+ offers video courses and written tutorials that teach a wide range of creative and technical skills including coding. Unlike video courses all tutorials and articles arepletely free. Based around specific projects they include step-by-step written instructions and screenshots to help you practice and master your skills. Among over 2 free tutorials there a pretty good one that teaches SQL. In fact this is more of an article than tutorial. It consists of two parts SQL for Beginners and SQL for Beginners Part 2. The first article includes an easy-to-grasp explanation of basic SQL queriesplete with many screenshots. In the second article users learn about indexes data s and some rather moreplex query structures. Both articles are available without registration. 1. Essential SQL Essential SQL authored by Kris Wenzel ( @sqlkris s ) is a great place to learn the fundamentals of SQL and database concepts. The course is based on Microsoft SQL Server which is why the author provides newbie users with a ge on how to get started using this database engine. The tutorial presents free tools to get you started a ge leading you through the setup process step-by-step explanations of how to download and activate a sample database and much more. Youll get to know how to create simple select and sort queries introduce yourself to SQL Server built-in function learn how to normalize your database and much more. An especially great thing with Essential SQL is that Kris is personally involved in the teaching process. When there are problems or doubts he strongly encourages readers to contact him. A significant drawback of this course is its lack of a structured learning program. It more an extensive collection of articles covering a wide range of SQL-related topics than a step-by-step tutorial. Most of the articles are available without registration; however some content requires users to sign up with an email account. 11. Learn SQL The Hard Way The essence of this course is perfectly described by the following review This book will teach you the 8% of SQL you probably need to use it effectively and will mix in concepts in data modeling at the same time. Indeed the tutorial looks much more like a story where each chapter has some theoretical content related questions and exercises. You can learn the basics of creating and manipulating tables get familiar with data migration and start understanding data manipulation and transactions. To keep the book simple the site uses SQLite3 to teach you how to design data and work with it. Right now there an HTML ALPHA version of the book available so users will have to wait for the final chapters to bepleted. The entire contents of the website is available without registration. 12. Udemy 3 SQL Tutorials s Udemy s is a leading global platform where experts create courses and offer them to the public either at no charge or for a tuition fee. Udemy provides various database and SQL video courses designed for particular database engines including MySQL Oracle and MS SQL Server . There are several free SQL courses for both beginners and advanced users. Here are some free courses worth checking into Introduction to Databases and SQL Querying s MySQL Database For Beginners s SQL Server For Beginners s HANDS-ON SQL For Beginners (SELECT FROM & WHERE) s Sachin quickly learns SQL s To start learning you must register with your email address. 13. SoloLearn s SoloLearn s is an online learning platform that offers a variety of free courses on programming languages. One of their courses is SQL Fundamentals s a great resource for fast effective and fun SQL tutorials. The course consists of 27 lessons split among the following four modules Basic Concepts Filtering Functions Subqueries JOIN Table Operations Challenges Based on the MySQL database the SQL Fundamentals s course covers the basics of database fundamentals such as query syntax filtering records aggregate functions and joining tables even teaching more advanced concepts like subqueries set operations and views. The course not only covers the basic SELECT code statement but also the UPDATE code DELETE code INSERT code and ALTER code statements. The lessons are short but focused allowing you to stay on target to finish the course in a relatively short period of time. Each module is followed by an interactive quiz and the last module presents a summary with two challenges. You don have to install any database server on your own machine to answer the questions or work through the interactive problems. Delivered through a convenient and user-friendly platform the SQL Fundamentals s course allows you to learn at your own pace and from any device such as your PC tablet or smartphone. While the course is free it does require registration though the process is very simple. Once youplete the course youll even get a free certificate to showcase your achievement! 14. MySQL Tutorial This website provides users with a set of tutorials on managing MySQL databases and manipulate data. With various techniques 3 such as SQL queries MySQL stored procedures database views triggers and more 3 the tutorials shows how to deal withmon tasks in MySQL. The Basic MySQL tutorial helps you get familiar with the fundamentals including managing databases creating tables querying and modifying data using various MySQL statements and other constructs. In the MySQL Tips section users are provided with advanced techniques and tips to help them solve the most difficult challenges in MySQL effectively. Other tutorials give in-depth background information on MySQL stored procedure MySQL triggers MySQL views MySQL full- search MySQL functions MySQL administration . All tutorials are available without registration. 15. SQLCourse SQLCourse provides easy-to-understand SQL instructions and allows you to practice what you learn with an on-line interpreter . With these tools you can create your own unique tables and perform selects inserts updates deletes and drops 3 in other words youll learn the basics of SQL by doing it yourself. When youplete the basic training you can continue developing your SQL skills with SQLCourse2 . This course gives you an introduction to important advanced features and clauses of the SELECT statement that weren supported in the previous part. The resources of both websites SQLCourse and SQLCourse2 are available without registration however you can sign up with your email to get free access to newsletters whitepapers and other premium contents. 16. Database Journal The site related to SQLCourse and SQLCourse2 . Although it looks old-fashioned Database Journal is a greatprehensive source of knowledge. There are lots of database articles news pieces and tutorials regarding MS SQL Oracle DB2 MS Access and MySQL database management systems. You don have to register to take advantages of this website but you can sign up with your email to get free access to newsletters whitepapers and other premium contents. 17. Guru99 Guru99 has a wealth of tutorials on a wide variety of subjects. Some of the tutorials are written while others are video-based. As far as SQL the Guru99 website offers SQL Tutorial for Beginners Learn in 7 Days which teaches SQL from the basics such as the fundamentals of the SQL language to more advanced techniques like joining tables set operations and subqueries. It is not an interactive course (it has no SQL Console) but it is an interesting resource for learning SQL. This SQL Tutorial is based on the MySQL database server. On the tutorial main website youll find the table of contents. The topics in respective sections are exed clearly and precisely. In addition to the section diagrams and funny pictures help to ex the material in an easy and accessible manner. In each section youll also find query syntax and examples. Sections conclude with a short summary and you can also take an SQL Quiz to test your acquired knowledge. All of Guru99 educational tutorials are free and they don even require registration. * * * * * The following resources cover database fundamentals and usage. 18. SQL for Web Nerds SQL for Web Nerds is a free online book written and distributed by MIT professor Philip Greenspun s . Some of you may be familiar with this book since it required reading for many university database classes. SQL for Web Nerds teaches relational database management systems from the perspective of a web application developer rather than from a theoretical point of view. It covers basic database concepts such as ACID and how RDBMS work; provides examples of simple andplex queries transactions triggers and views; and tackles issues like having Java executing inside an Oracle Server handling foreign and legacy data and normalization. Note The SQL examples given in the book are for the Oracle database. All of this is presented in a light way with well-thought-out examples. Photographs illustrating the author concepts enrich the tutorial. The entire website is available without registration. 19. Stanford Database Course s This course covers database design and the use of database management systems for applications. It where you can find self-paced mini-courses or one collective Introduction to Databases course that contains all mini-courses and a no-SQL review. Courses are taught by Professor Jennifer Widom s co-author of four academic books covering beginning and advanced introductions to database systems. In brief these courses cover Introduction to relational databases Querying Relational Databases and XML Databases; Database Design; and SQL Advanced Features. The Stanford Database Course s has four major elements Courseware Readings Discussion Forum and Wiki . The main materials are found under Courseware surveys video lectures with transcripts quizzes and exercises. Suggested supplementary readings and other pointers are found under Readings . If you want to enroll the course you must register for an account in the Stanford online learning system. * * * * * The following resources focus on learning through fun. 2. Schemaverse s Who said that the learning process has to bepletely based on tutorials? It could also be fun! So if you are keen onputer games and want to learn SQL this one is definitely for you. Briefly Schemaverse s is a space-based strategy game implemented entirely within a PostgreSQL database. Players start on their home planets where they can build new spaceships and mine resources that can be used to create or upgrade additional spaceships. Afterpleting their own fleet they can expand across the universe and conquer planets belonging to other players. Tomand their fleet andpete against others the gamers must use raw SQL statements. It not only beginners who can find something here. Indeed some more advanced in PostgreSQL will definitely enjoy playing Schemaverse. As a result the gamer will not only be fluent in basic SQL but theyll also get acquainted with PL To participate in the game you must sign up with your email. 21. GalaXQL 3. Ready for another fun approach to learning? This one is a galaxy manipulation application where you can run queries against galaxy database model created in SQLite . The course provides a virtual teacher Professor Alfred T. Guru who introduces you to basic SQL syntax. The course starts with an explanation of SELECT statement goes on through transactions and ends with indexes. Each chapter along with a detailed explanation contains an exercise that puts the theory into practice. Basically the exercise relies on writing an SQL query in the editor below the galaxy map. Afterpleting the task the user gets the query results or in case of errors receives helpful human-readable error messages. In addition to online course there are downloadable desktop versions available for Windows OS X and Linux. The tutorial is available without registration. * * * * * 22. SQL References Following are s to online documentation for some databases. Although SQL statements typically aren much different between SQL dialects when writing simple queries it important to be aware of the documentation for your dialect of SQL and use it often. Here are themon dialects references MySQL documentation PostgreSQL documentation DB2 SQL reference Oracle Database SQL reference SQLite 3 SQL Syntax * * * * * Online tools to practise and improve SQL skills 23. SQL Fiddle SQLfiddle is the perfect tool to test queriespare and contrast SQL statements in different database back-ends or when you don have a particular database platform readily available but would like to see what a given query would look like in that environment. Good Luck for your future! Furthermore if you have any queries do disturb me on the s given below & if you like this answer give a big thumbs up or up vote. Instagram - TheMenYouWantToBe22 (@themenyouwanttobe) u222 Instagram photos and videos s Wordpress - THEMENYOUWANTTOBE s Twitter - s s Linkedin - s s Facebook - s s